Home / 900,800.59-1,242,982.41-538,147.69

Finding the Fourth Proportional to 900,800.59, 1,242,982.41 and 538,147.69

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Solution

The fourth proportional to 900,800.59, 1,242,982.41 and 538,147.69 is: 742,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,800.59 : 1,242,982.41 = 538,147.69 : x
  2. Step 2: Convert to fraction form
    900,800.59/1,242,982.41 = 538,147.69/x
  3. Step 3: Cross multiply
    900,800.59x = 1,242,982.41 × 538,147.69
  4. Step 4: Simplify right side
    900,800.59x = 668,908,112,652.13
  5. Step 5: Solve for x
    x = 668,908,112,652.13/900,800.59
  6. Step 6: Final answer
    x = 742,570.69

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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.