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Finding the Fourth Proportional to 478,955.32, 717,345.46 and 371,476.44

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Solution

The fourth proportional to 478,955.32, 717,345.46 and 371,476.44 is: 556,371.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,955.32 : 717,345.46 = 371,476.44 : x
  2. Step 2: Convert to fraction form
    478,955.32/717,345.46 = 371,476.44/x
  3. Step 3: Cross multiply
    478,955.32x = 717,345.46 × 371,476.44
  4. Step 4: Simplify right side
    478,955.32x = 266,476,937,730.96
  5. Step 5: Solve for x
    x = 266,476,937,730.96/478,955.32
  6. Step 6: Final answer
    x = 556,371.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.