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Finding the Fourth Proportional to 659,998.72, 910,800.48 and 358,192.64

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Solution

The fourth proportional to 659,998.72, 910,800.48 and 358,192.64 is: 494,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,998.72 : 910,800.48 = 358,192.64 : x
  2. Step 2: Convert to fraction form
    659,998.72/910,800.48 = 358,192.64/x
  3. Step 3: Cross multiply
    659,998.72x = 910,800.48 × 358,192.64
  4. Step 4: Simplify right side
    659,998.72x = 326,242,028,444.47
  5. Step 5: Solve for x
    x = 326,242,028,444.47/659,998.72
  6. Step 6: Final answer
    x = 494,307.06

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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.