Home / 905,667.52-1,249,834.12-497,807.08

Finding the Fourth Proportional to 905,667.52, 1,249,834.12 and 497,807.08

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Solution

The fourth proportional to 905,667.52, 1,249,834.12 and 497,807.08 is: 686,980.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,667.52 : 1,249,834.12 = 497,807.08 : x
  2. Step 2: Convert to fraction form
    905,667.52/1,249,834.12 = 497,807.08/x
  3. Step 3: Cross multiply
    905,667.52x = 1,249,834.12 × 497,807.08
  4. Step 4: Simplify right side
    905,667.52x = 622,176,273,761.57
  5. Step 5: Solve for x
    x = 622,176,273,761.57/905,667.52
  6. Step 6: Final answer
    x = 686,980.88

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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.