Home / 905,126.16-1,249,074.92-497,254.42

Finding the Fourth Proportional to 905,126.16, 1,249,074.92 and 497,254.42

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Solution

The fourth proportional to 905,126.16, 1,249,074.92 and 497,254.42 is: 686,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,126.16 : 1,249,074.92 = 497,254.42 : x
  2. Step 2: Convert to fraction form
    905,126.16/1,249,074.92 = 497,254.42/x
  3. Step 3: Cross multiply
    905,126.16x = 1,249,074.92 × 497,254.42
  4. Step 4: Simplify right side
    905,126.16x = 621,108,025,820.92
  5. Step 5: Solve for x
    x = 621,108,025,820.92/905,126.16
  6. Step 6: Final answer
    x = 686,211.55

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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.