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Finding the Fourth Proportional to 559,693.98, 772,398.34 and 318,017.48

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Solution

The fourth proportional to 559,693.98, 772,398.34 and 318,017.48 is: 438,875.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,693.98 : 772,398.34 = 318,017.48 : x
  2. Step 2: Convert to fraction form
    559,693.98/772,398.34 = 318,017.48/x
  3. Step 3: Cross multiply
    559,693.98x = 772,398.34 × 318,017.48
  4. Step 4: Simplify right side
    559,693.98x = 245,636,168,985.95
  5. Step 5: Solve for x
    x = 245,636,168,985.95/559,693.98
  6. Step 6: Final answer
    x = 438,875.85

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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.