Home / 897,907.90-1,239,139.02-490,035.97

Finding the Fourth Proportional to 897,907.90, 1,239,139.02 and 490,035.97

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Solution

The fourth proportional to 897,907.90, 1,239,139.02 and 490,035.97 is: 676,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,907.90 : 1,239,139.02 = 490,035.97 : x
  2. Step 2: Convert to fraction form
    897,907.90/1,239,139.02 = 490,035.97/x
  3. Step 3: Cross multiply
    897,907.90x = 1,239,139.02 × 490,035.97
  4. Step 4: Simplify right side
    897,907.90x = 607,222,691,630.55
  5. Step 5: Solve for x
    x = 607,222,691,630.55/897,907.90
  6. Step 6: Final answer
    x = 676,263.89

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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.