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Finding the Fourth Proportional to 908,602.76, 1,253,880.06 and 500,719.22

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Solution

The fourth proportional to 908,602.76, 1,253,880.06 and 500,719.22 is: 690,997.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,602.76 : 1,253,880.06 = 500,719.22 : x
  2. Step 2: Convert to fraction form
    908,602.76/1,253,880.06 = 500,719.22/x
  3. Step 3: Cross multiply
    908,602.76x = 1,253,880.06 × 500,719.22
  4. Step 4: Simplify right side
    908,602.76x = 627,841,845,616.75
  5. Step 5: Solve for x
    x = 627,841,845,616.75/908,602.76
  6. Step 6: Final answer
    x = 690,997.07

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Double scale
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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.