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Finding the Fourth Proportional to 672,875.11, 928,555.95 and 366,953.86

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Solution

The fourth proportional to 672,875.11, 928,555.95 and 366,953.86 is: 506,389.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,875.11 : 928,555.95 = 366,953.86 : x
  2. Step 2: Convert to fraction form
    672,875.11/928,555.95 = 366,953.86/x
  3. Step 3: Cross multiply
    672,875.11x = 928,555.95 × 366,953.86
  4. Step 4: Simplify right side
    672,875.11x = 340,737,190,078.47
  5. Step 5: Solve for x
    x = 340,737,190,078.47/672,875.11
  6. Step 6: Final answer
    x = 506,389.95

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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.