Home / 656,260.20-984,779.10-478,319.40

Finding the Fourth Proportional to 656,260.20, 984,779.10 and 478,319.40

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Solution

The fourth proportional to 656,260.20, 984,779.10 and 478,319.40 is: 717,762.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,260.20 : 984,779.10 = 478,319.40 : x
  2. Step 2: Convert to fraction form
    656,260.20/984,779.10 = 478,319.40/x
  3. Step 3: Cross multiply
    656,260.20x = 984,779.10 × 478,319.40
  4. Step 4: Simplify right side
    656,260.20x = 471,038,948,244.54
  5. Step 5: Solve for x
    x = 471,038,948,244.54/656,260.20
  6. Step 6: Final answer
    x = 717,762.48

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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.