Home / 749,763.60-1,123,284.60-433,280.40

Finding the Fourth Proportional to 749,763.60, 1,123,284.60 and 433,280.40

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Solution

The fourth proportional to 749,763.60, 1,123,284.60 and 433,280.40 is: 649,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,763.60 : 1,123,284.60 = 433,280.40 : x
  2. Step 2: Convert to fraction form
    749,763.60/1,123,284.60 = 433,280.40/x
  3. Step 3: Cross multiply
    749,763.60x = 1,123,284.60 × 433,280.40
  4. Step 4: Simplify right side
    749,763.60x = 486,697,200,801.84
  5. Step 5: Solve for x
    x = 486,697,200,801.84/749,763.60
  6. Step 6: Final answer
    x = 649,134.21

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Double scale
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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.