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Finding the Fourth Proportional to 630,308.80, 869,898.65 and 350,934.13

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Solution

The fourth proportional to 630,308.80, 869,898.65 and 350,934.13 is: 484,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,308.80 : 869,898.65 = 350,934.13 : x
  2. Step 2: Convert to fraction form
    630,308.80/869,898.65 = 350,934.13/x
  3. Step 3: Cross multiply
    630,308.80x = 869,898.65 × 350,934.13
  4. Step 4: Simplify right side
    630,308.80x = 305,277,125,925.93
  5. Step 5: Solve for x
    x = 305,277,125,925.93/630,308.80
  6. Step 6: Final answer
    x = 484,329.47

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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.