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Finding the Fourth Proportional to 876,421, 1,209,461.07 and 474,013

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Solution

The fourth proportional to 876,421, 1,209,461.07 and 474,013 is: 654,137.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,421 : 1,209,461.07 = 474,013 : x
  2. Step 2: Convert to fraction form
    876,421/1,209,461.07 = 474,013/x
  3. Step 3: Cross multiply
    876,421x = 1,209,461.07 × 474,013
  4. Step 4: Simplify right side
    876,421x = 573,300,270,173.91
  5. Step 5: Solve for x
    x = 573,300,270,173.91/876,421
  6. Step 6: Final answer
    x = 654,137.99

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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.