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Finding the Fourth Proportional to 558,229.04, 770,332.64 and 316,528

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Solution

The fourth proportional to 558,229.04, 770,332.64 and 316,528 is: 436,795.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,229.04 : 770,332.64 = 316,528 : x
  2. Step 2: Convert to fraction form
    558,229.04/770,332.64 = 316,528/x
  3. Step 3: Cross multiply
    558,229.04x = 770,332.64 × 316,528
  4. Step 4: Simplify right side
    558,229.04x = 243,831,849,873.92
  5. Step 5: Solve for x
    x = 243,831,849,873.92/558,229.04
  6. Step 6: Final answer
    x = 436,795.35

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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.