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Finding the Fourth Proportional to 501,726.92, 692,337.30 and 286,860.20

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Solution

The fourth proportional to 501,726.92, 692,337.30 and 286,860.20 is: 395,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,726.92 : 692,337.30 = 286,860.20 : x
  2. Step 2: Convert to fraction form
    501,726.92/692,337.30 = 286,860.20/x
  3. Step 3: Cross multiply
    501,726.92x = 692,337.30 × 286,860.20
  4. Step 4: Simplify right side
    501,726.92x = 198,604,016,345.46
  5. Step 5: Solve for x
    x = 198,604,016,345.46/501,726.92
  6. Step 6: Final answer
    x = 395,840.86

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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.