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Finding the Fourth Proportional to 559,476.48, 838,398.24 and 278,607.36

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Solution

The fourth proportional to 559,476.48, 838,398.24 and 278,607.36 is: 417,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,476.48 : 838,398.24 = 278,607.36 : x
  2. Step 2: Convert to fraction form
    559,476.48/838,398.24 = 278,607.36/x
  3. Step 3: Cross multiply
    559,476.48x = 838,398.24 × 278,607.36
  4. Step 4: Simplify right side
    559,476.48x = 233,583,920,275.05
  5. Step 5: Solve for x
    x = 233,583,920,275.05/559,476.48
  6. Step 6: Final answer
    x = 417,504.45

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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.