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Finding the Fourth Proportional to 582,805.55, 873,986.85 and 278,887.74

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Solution

The fourth proportional to 582,805.55, 873,986.85 and 278,887.74 is: 418,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,805.55 : 873,986.85 = 278,887.74 : x
  2. Step 2: Convert to fraction form
    582,805.55/873,986.85 = 278,887.74/x
  3. Step 3: Cross multiply
    582,805.55x = 873,986.85 × 278,887.74
  4. Step 4: Simplify right side
    582,805.55x = 243,744,217,386.22
  5. Step 5: Solve for x
    x = 243,744,217,386.22/582,805.55
  6. Step 6: Final answer
    x = 418,225.63

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1.5x scale

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.