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Finding the Fourth Proportional to 608,320.40, 912,480.60 and 529,588.40

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Solution

The fourth proportional to 608,320.40, 912,480.60 and 529,588.40 is: 794,382.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,320.40 : 912,480.60 = 529,588.40 : x
  2. Step 2: Convert to fraction form
    608,320.40/912,480.60 = 529,588.40/x
  3. Step 3: Cross multiply
    608,320.40x = 912,480.60 × 529,588.40
  4. Step 4: Simplify right side
    608,320.40x = 483,239,140,985.04
  5. Step 5: Solve for x
    x = 483,239,140,985.04/608,320.40
  6. Step 6: Final answer
    x = 794,382.60

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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.