Home / 905,513.60-1,249,601.46-492,046.76

Finding the Fourth Proportional to 905,513.60, 1,249,601.46 and 492,046.76

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Solution

The fourth proportional to 905,513.60, 1,249,601.46 and 492,046.76 is: 679,020.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,513.60 : 1,249,601.46 = 492,046.76 : x
  2. Step 2: Convert to fraction form
    905,513.60/1,249,601.46 = 492,046.76/x
  3. Step 3: Cross multiply
    905,513.60x = 1,249,601.46 × 492,046.76
  4. Step 4: Simplify right side
    905,513.60x = 614,862,349,684.27
  5. Step 5: Solve for x
    x = 614,862,349,684.27/905,513.60
  6. Step 6: Final answer
    x = 679,020.56

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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.