Home / 979,844.89-1,352,207.33-538,325.16

Finding the Fourth Proportional to 979,844.89, 1,352,207.33 and 538,325.16

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Solution

The fourth proportional to 979,844.89, 1,352,207.33 and 538,325.16 is: 742,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,844.89 : 1,352,207.33 = 538,325.16 : x
  2. Step 2: Convert to fraction form
    979,844.89/1,352,207.33 = 538,325.16/x
  3. Step 3: Cross multiply
    979,844.89x = 1,352,207.33 × 538,325.16
  4. Step 4: Simplify right side
    979,844.89x = 727,927,227,275.42
  5. Step 5: Solve for x
    x = 727,927,227,275.42/979,844.89
  6. Step 6: Final answer
    x = 742,900.47

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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.