Home / 897,908.90-1,239,140.40-490,036.97

Finding the Fourth Proportional to 897,908.90, 1,239,140.40 and 490,036.97

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Solution

The fourth proportional to 897,908.90, 1,239,140.40 and 490,036.97 is: 676,265.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,908.90 : 1,239,140.40 = 490,036.97 : x
  2. Step 2: Convert to fraction form
    897,908.90/1,239,140.40 = 490,036.97/x
  3. Step 3: Cross multiply
    897,908.90x = 1,239,140.40 × 490,036.97
  4. Step 4: Simplify right side
    897,908.90x = 607,224,607,020.59
  5. Step 5: Solve for x
    x = 607,224,607,020.59/897,908.90
  6. Step 6: Final answer
    x = 676,265.27

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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.