Home / 529,988.73-731,377.38-288,266.10

Finding the Fourth Proportional to 529,988.73, 731,377.38 and 288,266.10

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Solution

The fourth proportional to 529,988.73, 731,377.38 and 288,266.10 is: 397,803.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,988.73 : 731,377.38 = 288,266.10 : x
  2. Step 2: Convert to fraction form
    529,988.73/731,377.38 = 288,266.10/x
  3. Step 3: Cross multiply
    529,988.73x = 731,377.38 × 288,266.10
  4. Step 4: Simplify right side
    529,988.73x = 210,831,304,960.82
  5. Step 5: Solve for x
    x = 210,831,304,960.82/529,988.73
  6. Step 6: Final answer
    x = 397,803.37

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1.5x scale

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.