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Finding the Fourth Proportional to 659,705.46, 910,395.29 and 357,899.46

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Solution

The fourth proportional to 659,705.46, 910,395.29 and 357,899.46 is: 493,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,705.46 : 910,395.29 = 357,899.46 : x
  2. Step 2: Convert to fraction form
    659,705.46/910,395.29 = 357,899.46/x
  3. Step 3: Cross multiply
    659,705.46x = 910,395.29 × 357,899.46
  4. Step 4: Simplify right side
    659,705.46x = 325,829,979,020.32
  5. Step 5: Solve for x
    x = 325,829,979,020.32/659,705.46
  6. Step 6: Final answer
    x = 493,902.21

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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.