Home / 712,442.05-983,162.68-385,749.47

Finding the Fourth Proportional to 712,442.05, 983,162.68 and 385,749.47

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Solution

The fourth proportional to 712,442.05, 983,162.68 and 385,749.47 is: 532,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,442.05 : 983,162.68 = 385,749.47 : x
  2. Step 2: Convert to fraction form
    712,442.05/983,162.68 = 385,749.47/x
  3. Step 3: Cross multiply
    712,442.05x = 983,162.68 × 385,749.47
  4. Step 4: Simplify right side
    712,442.05x = 379,254,484,227.31
  5. Step 5: Solve for x
    x = 379,254,484,227.31/712,442.05
  6. Step 6: Final answer
    x = 532,330.29

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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.