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Finding the Fourth Proportional to 659,814.20, 910,554.18 and 358,008.20

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Solution

The fourth proportional to 659,814.20, 910,554.18 and 358,008.20 is: 494,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,814.20 : 910,554.18 = 358,008.20 : x
  2. Step 2: Convert to fraction form
    659,814.20/910,554.18 = 358,008.20/x
  3. Step 3: Cross multiply
    659,814.20x = 910,554.18 × 358,008.20
  4. Step 4: Simplify right side
    659,814.20x = 325,985,862,984.28
  5. Step 5: Solve for x
    x = 325,985,862,984.28/659,814.20
  6. Step 6: Final answer
    x = 494,057.06

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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.