Home / 742,000.20-1,113,043.38-209,476.65

Finding the Fourth Proportional to 742,000.20, 1,113,043.38 and 209,476.65

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Solution

The fourth proportional to 742,000.20, 1,113,043.38 and 209,476.65 is: 314,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,000.20 : 1,113,043.38 = 209,476.65 : x
  2. Step 2: Convert to fraction form
    742,000.20/1,113,043.38 = 209,476.65/x
  3. Step 3: Cross multiply
    742,000.20x = 1,113,043.38 × 209,476.65
  4. Step 4: Simplify right side
    742,000.20x = 233,156,598,547.08
  5. Step 5: Solve for x
    x = 233,156,598,547.08/742,000.20
  6. Step 6: Final answer
    x = 314,227.14

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Double scale
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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.