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Finding the Fourth Proportional to 901,359, 1,243,875.42 and 493,459.56

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Solution

The fourth proportional to 901,359, 1,243,875.42 and 493,459.56 is: 680,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,359 : 1,243,875.42 = 493,459.56 : x
  2. Step 2: Convert to fraction form
    901,359/1,243,875.42 = 493,459.56/x
  3. Step 3: Cross multiply
    901,359x = 1,243,875.42 × 493,459.56
  4. Step 4: Simplify right side
    901,359x = 613,802,217,448.02
  5. Step 5: Solve for x
    x = 613,802,217,448.02/901,359
  6. Step 6: Final answer
    x = 680,974.19

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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.