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Finding the Fourth Proportional to 876,461, 1,209,516.30 and 474,053

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Solution

The fourth proportional to 876,461, 1,209,516.30 and 474,053 is: 654,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,461 : 1,209,516.30 = 474,053 : x
  2. Step 2: Convert to fraction form
    876,461/1,209,516.30 = 474,053/x
  3. Step 3: Cross multiply
    876,461x = 1,209,516.30 × 474,053
  4. Step 4: Simplify right side
    876,461x = 573,374,830,563.90
  5. Step 5: Solve for x
    x = 573,374,830,563.90/876,461
  6. Step 6: Final answer
    x = 654,193.20

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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.