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Finding the Fourth Proportional to 526,798.32, 726,981.65 and 285,080.86

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Solution

The fourth proportional to 526,798.32, 726,981.65 and 285,080.86 is: 393,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,798.32 : 726,981.65 = 285,080.86 : x
  2. Step 2: Convert to fraction form
    526,798.32/726,981.65 = 285,080.86/x
  3. Step 3: Cross multiply
    526,798.32x = 726,981.65 × 285,080.86
  4. Step 4: Simplify right side
    526,798.32x = 207,248,553,986.22
  5. Step 5: Solve for x
    x = 207,248,553,986.22/526,798.32
  6. Step 6: Final answer
    x = 393,411.57

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1.5x scale

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.