Home / 648,014.40-972,021.60-471,758.40

Finding the Fourth Proportional to 648,014.40, 972,021.60 and 471,758.40

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Solution

The fourth proportional to 648,014.40, 972,021.60 and 471,758.40 is: 707,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,014.40 : 972,021.60 = 471,758.40 : x
  2. Step 2: Convert to fraction form
    648,014.40/972,021.60 = 471,758.40/x
  3. Step 3: Cross multiply
    648,014.40x = 972,021.60 × 471,758.40
  4. Step 4: Simplify right side
    648,014.40x = 458,559,354,781.44
  5. Step 5: Solve for x
    x = 458,559,354,781.44/648,014.40
  6. Step 6: Final answer
    x = 707,637.60

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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.