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Finding the Fourth Proportional to 585,423.04, 807,921.12 and 359,037.76

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Solution

The fourth proportional to 585,423.04, 807,921.12 and 359,037.76 is: 495,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,423.04 : 807,921.12 = 359,037.76 : x
  2. Step 2: Convert to fraction form
    585,423.04/807,921.12 = 359,037.76/x
  3. Step 3: Cross multiply
    585,423.04x = 807,921.12 × 359,037.76
  4. Step 4: Simplify right side
    585,423.04x = 290,074,189,181.49
  5. Step 5: Solve for x
    x = 290,074,189,181.49/585,423.04
  6. Step 6: Final answer
    x = 495,495.00

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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.