Home / 437,628.10-656,442.15-403,413.70

Finding the Fourth Proportional to 437,628.10, 656,442.15 and 403,413.70

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Solution

The fourth proportional to 437,628.10, 656,442.15 and 403,413.70 is: 605,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,628.10 : 656,442.15 = 403,413.70 : x
  2. Step 2: Convert to fraction form
    437,628.10/656,442.15 = 403,413.70/x
  3. Step 3: Cross multiply
    437,628.10x = 656,442.15 × 403,413.70
  4. Step 4: Simplify right side
    437,628.10x = 264,817,756,567.46
  5. Step 5: Solve for x
    x = 264,817,756,567.46/437,628.10
  6. Step 6: Final answer
    x = 605,120.55

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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.