Home / 724,693.89-1,000,224.45-418,783.16

Finding the Fourth Proportional to 724,693.89, 1,000,224.45 and 418,783.16

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Solution

The fourth proportional to 724,693.89, 1,000,224.45 and 418,783.16 is: 578,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,693.89 : 1,000,224.45 = 418,783.16 : x
  2. Step 2: Convert to fraction form
    724,693.89/1,000,224.45 = 418,783.16/x
  3. Step 3: Cross multiply
    724,693.89x = 1,000,224.45 × 418,783.16
  4. Step 4: Simplify right side
    724,693.89x = 418,877,158,380.82
  5. Step 5: Solve for x
    x = 418,877,158,380.82/724,693.89
  6. Step 6: Final answer
    x = 578,005.65

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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.