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Finding the Fourth Proportional to 876,803, 1,209,988.14 and 474,395

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Solution

The fourth proportional to 876,803, 1,209,988.14 and 474,395 is: 654,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,803 : 1,209,988.14 = 474,395 : x
  2. Step 2: Convert to fraction form
    876,803/1,209,988.14 = 474,395/x
  3. Step 3: Cross multiply
    876,803x = 1,209,988.14 × 474,395
  4. Step 4: Simplify right side
    876,803x = 574,012,323,675.30
  5. Step 5: Solve for x
    x = 574,012,323,675.30/876,803
  6. Step 6: Final answer
    x = 654,665.10

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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.