Home / 742,660.30-1,112,071.92-512,559.32

Finding the Fourth Proportional to 742,660.30, 1,112,071.92 and 512,559.32

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Solution

The fourth proportional to 742,660.30, 1,112,071.92 and 512,559.32 is: 767,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,660.30 : 1,112,071.92 = 512,559.32 : x
  2. Step 2: Convert to fraction form
    742,660.30/1,112,071.92 = 512,559.32/x
  3. Step 3: Cross multiply
    742,660.30x = 1,112,071.92 × 512,559.32
  4. Step 4: Simplify right side
    742,660.30x = 570,002,827,106.29
  5. Step 5: Solve for x
    x = 570,002,827,106.29/742,660.30
  6. Step 6: Final answer
    x = 767,514.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.