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Finding the Fourth Proportional to 905,253, 1,249,249.80 and 497,381.04

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Solution

The fourth proportional to 905,253, 1,249,249.80 and 497,381.04 is: 686,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,253 : 1,249,249.80 = 497,381.04 : x
  2. Step 2: Convert to fraction form
    905,253/1,249,249.80 = 497,381.04/x
  3. Step 3: Cross multiply
    905,253x = 1,249,249.80 × 497,381.04
  4. Step 4: Simplify right side
    905,253x = 621,353,164,743.79
  5. Step 5: Solve for x
    x = 621,353,164,743.79/905,253
  6. Step 6: Final answer
    x = 686,386.20

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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.