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Finding the Fourth Proportional to 484,264.88, 668,307.06 and 403,557.20

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Solution

The fourth proportional to 484,264.88, 668,307.06 and 403,557.20 is: 556,926.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,264.88 : 668,307.06 = 403,557.20 : x
  2. Step 2: Convert to fraction form
    484,264.88/668,307.06 = 403,557.20/x
  3. Step 3: Cross multiply
    484,264.88x = 668,307.06 × 403,557.20
  4. Step 4: Simplify right side
    484,264.88x = 269,700,125,873.83
  5. Step 5: Solve for x
    x = 269,700,125,873.83/484,264.88
  6. Step 6: Final answer
    x = 556,926.87

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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.