Home / 724,288.10-1,086,432.15-424,912.10

Finding the Fourth Proportional to 724,288.10, 1,086,432.15 and 424,912.10

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Solution

The fourth proportional to 724,288.10, 1,086,432.15 and 424,912.10 is: 637,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,288.10 : 1,086,432.15 = 424,912.10 : x
  2. Step 2: Convert to fraction form
    724,288.10/1,086,432.15 = 424,912.10/x
  3. Step 3: Cross multiply
    724,288.10x = 1,086,432.15 × 424,912.10
  4. Step 4: Simplify right side
    724,288.10x = 461,638,166,364.02
  5. Step 5: Solve for x
    x = 461,638,166,364.02/724,288.10
  6. Step 6: Final answer
    x = 637,368.15

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1.5x scale

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.