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Finding the Fourth Proportional to 865,363.33, 1,298,509.74 and 360,272.95

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Solution

The fourth proportional to 865,363.33, 1,298,509.74 and 360,272.95 is: 540,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,363.33 : 1,298,509.74 = 360,272.95 : x
  2. Step 2: Convert to fraction form
    865,363.33/1,298,509.74 = 360,272.95/x
  3. Step 3: Cross multiply
    865,363.33x = 1,298,509.74 × 360,272.95
  4. Step 4: Simplify right side
    865,363.33x = 467,817,934,633.53
  5. Step 5: Solve for x
    x = 467,817,934,633.53/865,363.33
  6. Step 6: Final answer
    x = 540,602.91

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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.