Home / 971,217.20-1,457,246.10-521,413.40

Finding the Fourth Proportional to 971,217.20, 1,457,246.10 and 521,413.40

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Solution

The fourth proportional to 971,217.20, 1,457,246.10 and 521,413.40 is: 782,345.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,217.20 : 1,457,246.10 = 521,413.40 : x
  2. Step 2: Convert to fraction form
    971,217.20/1,457,246.10 = 521,413.40/x
  3. Step 3: Cross multiply
    971,217.20x = 1,457,246.10 × 521,413.40
  4. Step 4: Simplify right side
    971,217.20x = 759,827,643,637.74
  5. Step 5: Solve for x
    x = 759,827,643,637.74/971,217.20
  6. Step 6: Final answer
    x = 782,345.74

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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.