Home / 724,875.34-1,000,269.42-418,971.53

Finding the Fourth Proportional to 724,875.34, 1,000,269.42 and 418,971.53

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Solution

The fourth proportional to 724,875.34, 1,000,269.42 and 418,971.53 is: 578,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,875.34 : 1,000,269.42 = 418,971.53 : x
  2. Step 2: Convert to fraction form
    724,875.34/1,000,269.42 = 418,971.53/x
  3. Step 3: Cross multiply
    724,875.34x = 1,000,269.42 × 418,971.53
  4. Step 4: Simplify right side
    724,875.34x = 419,084,409,309.61
  5. Step 5: Solve for x
    x = 419,084,409,309.61/724,875.34
  6. Step 6: Final answer
    x = 578,146.87

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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.