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Finding the Fourth Proportional to 453,979.73, 626,445.67 and 279,522.23

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Solution

The fourth proportional to 453,979.73, 626,445.67 and 279,522.23 is: 385,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,979.73 : 626,445.67 = 279,522.23 : x
  2. Step 2: Convert to fraction form
    453,979.73/626,445.67 = 279,522.23/x
  3. Step 3: Cross multiply
    453,979.73x = 626,445.67 × 279,522.23
  4. Step 4: Simplify right side
    453,979.73x = 175,105,490,652.24
  5. Step 5: Solve for x
    x = 175,105,490,652.24/453,979.73
  6. Step 6: Final answer
    x = 385,712.13

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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.