Home / 651,740.20-977,610.30-402,562.60

Finding the Fourth Proportional to 651,740.20, 977,610.30 and 402,562.60

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Solution

The fourth proportional to 651,740.20, 977,610.30 and 402,562.60 is: 603,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,740.20 : 977,610.30 = 402,562.60 : x
  2. Step 2: Convert to fraction form
    651,740.20/977,610.30 = 402,562.60/x
  3. Step 3: Cross multiply
    651,740.20x = 977,610.30 × 402,562.60
  4. Step 4: Simplify right side
    651,740.20x = 393,549,344,154.78
  5. Step 5: Solve for x
    x = 393,549,344,154.78/651,740.20
  6. Step 6: Final answer
    x = 603,843.90

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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.