Home / 724,586.94-999,926.16-397,906.20

Finding the Fourth Proportional to 724,586.94, 999,926.16 and 397,906.20

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Solution

The fourth proportional to 724,586.94, 999,926.16 and 397,906.20 is: 549,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,586.94 : 999,926.16 = 397,906.20 : x
  2. Step 2: Convert to fraction form
    724,586.94/999,926.16 = 397,906.20/x
  3. Step 3: Cross multiply
    724,586.94x = 999,926.16 × 397,906.20
  4. Step 4: Simplify right side
    724,586.94x = 397,876,818,606.19
  5. Step 5: Solve for x
    x = 397,876,818,606.19/724,586.94
  6. Step 6: Final answer
    x = 549,108.46

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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.