Home / 980,672.80-1,470,663.60-349,607.20

Finding the Fourth Proportional to 980,672.80, 1,470,663.60 and 349,607.20

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Solution

The fourth proportional to 980,672.80, 1,470,663.60 and 349,607.20 is: 524,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,672.80 : 1,470,663.60 = 349,607.20 : x
  2. Step 2: Convert to fraction form
    980,672.80/1,470,663.60 = 349,607.20/x
  3. Step 3: Cross multiply
    980,672.80x = 1,470,663.60 × 349,607.20
  4. Step 4: Simplify right side
    980,672.80x = 514,154,583,337.92
  5. Step 5: Solve for x
    x = 514,154,583,337.92/980,672.80
  6. Step 6: Final answer
    x = 524,287.59

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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.