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Finding the Fourth Proportional to 608,985.20, 912,700.20 and 468,045.20

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Solution

The fourth proportional to 608,985.20, 912,700.20 and 468,045.20 is: 701,470.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,985.20 : 912,700.20 = 468,045.20 : x
  2. Step 2: Convert to fraction form
    608,985.20/912,700.20 = 468,045.20/x
  3. Step 3: Cross multiply
    608,985.20x = 912,700.20 × 468,045.20
  4. Step 4: Simplify right side
    608,985.20x = 427,184,947,649.04
  5. Step 5: Solve for x
    x = 427,184,947,649.04/608,985.20
  6. Step 6: Final answer
    x = 701,470.16

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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.