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Finding the Fourth Proportional to 553,681.30, 831,443.55 and 304,542.10

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Solution

The fourth proportional to 553,681.30, 831,443.55 and 304,542.10 is: 457,320.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,681.30 : 831,443.55 = 304,542.10 : x
  2. Step 2: Convert to fraction form
    553,681.30/831,443.55 = 304,542.10/x
  3. Step 3: Cross multiply
    553,681.30x = 831,443.55 × 304,542.10
  4. Step 4: Simplify right side
    553,681.30x = 253,209,564,748.46
  5. Step 5: Solve for x
    x = 253,209,564,748.46/553,681.30
  6. Step 6: Final answer
    x = 457,320.06

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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.