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Finding the Fourth Proportional to 560,725.65, 773,774.37 and 318,985.47

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Solution

The fourth proportional to 560,725.65, 773,774.37 and 318,985.47 is: 440,184.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,725.65 : 773,774.37 = 318,985.47 : x
  2. Step 2: Convert to fraction form
    560,725.65/773,774.37 = 318,985.47/x
  3. Step 3: Cross multiply
    560,725.65x = 773,774.37 × 318,985.47
  4. Step 4: Simplify right side
    560,725.65x = 246,822,781,088.40
  5. Step 5: Solve for x
    x = 246,822,781,088.40/560,725.65
  6. Step 6: Final answer
    x = 440,184.57

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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.