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Finding the Fourth Proportional to 659,642.92, 910,309 and 357,836.92

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Solution

The fourth proportional to 659,642.92, 910,309 and 357,836.92 is: 493,815.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,642.92 : 910,309 = 357,836.92 : x
  2. Step 2: Convert to fraction form
    659,642.92/910,309 = 357,836.92/x
  3. Step 3: Cross multiply
    659,642.92x = 910,309 × 357,836.92
  4. Step 4: Simplify right side
    659,642.92x = 325,742,168,808.28
  5. Step 5: Solve for x
    x = 325,742,168,808.28/659,642.92
  6. Step 6: Final answer
    x = 493,815.91

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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.