Home / 745,113.90-1,117,334.60-212,508.33

Finding the Fourth Proportional to 745,113.90, 1,117,334.60 and 212,508.33

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Solution

The fourth proportional to 745,113.90, 1,117,334.60 and 212,508.33 is: 318,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,113.90 : 1,117,334.60 = 212,508.33 : x
  2. Step 2: Convert to fraction form
    745,113.90/1,117,334.60 = 212,508.33/x
  3. Step 3: Cross multiply
    745,113.90x = 1,117,334.60 × 212,508.33
  4. Step 4: Simplify right side
    745,113.90x = 237,442,908,834.68
  5. Step 5: Solve for x
    x = 237,442,908,834.68/745,113.90
  6. Step 6: Final answer
    x = 318,666.59

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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.