Home / 905,413.76-1,249,470.60-497,541.92

Finding the Fourth Proportional to 905,413.76, 1,249,470.60 and 497,541.92

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Solution

The fourth proportional to 905,413.76, 1,249,470.60 and 497,541.92 is: 686,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,413.76 : 1,249,470.60 = 497,541.92 : x
  2. Step 2: Convert to fraction form
    905,413.76/1,249,470.60 = 497,541.92/x
  3. Step 3: Cross multiply
    905,413.76x = 1,249,470.60 × 497,541.92
  4. Step 4: Simplify right side
    905,413.76x = 621,664,001,307.55
  5. Step 5: Solve for x
    x = 621,664,001,307.55/905,413.76
  6. Step 6: Final answer
    x = 686,607.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.