Home / 989,432.10-1,483,500.15-390,032.10

Finding the Fourth Proportional to 989,432.10, 1,483,500.15 and 390,032.10

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Solution

The fourth proportional to 989,432.10, 1,483,500.15 and 390,032.10 is: 584,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,432.10 : 1,483,500.15 = 390,032.10 : x
  2. Step 2: Convert to fraction form
    989,432.10/1,483,500.15 = 390,032.10/x
  3. Step 3: Cross multiply
    989,432.10x = 1,483,500.15 × 390,032.10
  4. Step 4: Simplify right side
    989,432.10x = 578,612,678,854.82
  5. Step 5: Solve for x
    x = 578,612,678,854.82/989,432.10
  6. Step 6: Final answer
    x = 584,792.71

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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.