Home / 898,854.69-1,240,412.07-490,956.81

Finding the Fourth Proportional to 898,854.69, 1,240,412.07 and 490,956.81

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Solution

The fourth proportional to 898,854.69, 1,240,412.07 and 490,956.81 is: 677,516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,854.69 : 1,240,412.07 = 490,956.81 : x
  2. Step 2: Convert to fraction form
    898,854.69/1,240,412.07 = 490,956.81/x
  3. Step 3: Cross multiply
    898,854.69x = 1,240,412.07 × 490,956.81
  4. Step 4: Simplify right side
    898,854.69x = 608,988,752,972.70
  5. Step 5: Solve for x
    x = 608,988,752,972.70/898,854.69
  6. Step 6: Final answer
    x = 677,516.35

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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.