Home / 709,820.40-1,064,730.60-355,526.40

Finding the Fourth Proportional to 709,820.40, 1,064,730.60 and 355,526.40

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Solution

The fourth proportional to 709,820.40, 1,064,730.60 and 355,526.40 is: 533,289.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,820.40 : 1,064,730.60 = 355,526.40 : x
  2. Step 2: Convert to fraction form
    709,820.40/1,064,730.60 = 355,526.40/x
  3. Step 3: Cross multiply
    709,820.40x = 1,064,730.60 × 355,526.40
  4. Step 4: Simplify right side
    709,820.40x = 378,539,837,187.84
  5. Step 5: Solve for x
    x = 378,539,837,187.84/709,820.40
  6. Step 6: Final answer
    x = 533,289.60

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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.