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Finding the Fourth Proportional to 607,958.64, 838,547.79 and 426,711

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Solution

The fourth proportional to 607,958.64, 838,547.79 and 426,711 is: 588,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,958.64 : 838,547.79 = 426,711 : x
  2. Step 2: Convert to fraction form
    607,958.64/838,547.79 = 426,711/x
  3. Step 3: Cross multiply
    607,958.64x = 838,547.79 × 426,711
  4. Step 4: Simplify right side
    607,958.64x = 357,817,566,018.69
  5. Step 5: Solve for x
    x = 357,817,566,018.69/607,958.64
  6. Step 6: Final answer
    x = 588,555.77

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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.