Home / 3,121,347.60-4,682,021.40-877,485.60

Finding the Fourth Proportional to 3,121,347.60, 4,682,021.40 and 877,485.60

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Solution

The fourth proportional to 3,121,347.60, 4,682,021.40 and 877,485.60 is: 1,316,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,347.60 : 4,682,021.40 = 877,485.60 : x
  2. Step 2: Convert to fraction form
    3,121,347.60/4,682,021.40 = 877,485.60/x
  3. Step 3: Cross multiply
    3,121,347.60x = 4,682,021.40 × 877,485.60
  4. Step 4: Simplify right side
    3,121,347.60x = 4,108,406,357,391.84
  5. Step 5: Solve for x
    x = 4,108,406,357,391.84/3,121,347.60
  6. Step 6: Final answer
    x = 1,316,228.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.