Home / 985,487.16-1,359,959.57-555,905.68

Finding the Fourth Proportional to 985,487.16, 1,359,959.57 and 555,905.68

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Solution

The fourth proportional to 985,487.16, 1,359,959.57 and 555,905.68 is: 767,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,487.16 : 1,359,959.57 = 555,905.68 : x
  2. Step 2: Convert to fraction form
    985,487.16/1,359,959.57 = 555,905.68/x
  3. Step 3: Cross multiply
    985,487.16x = 1,359,959.57 × 555,905.68
  4. Step 4: Simplify right side
    985,487.16x = 756,009,246,753.83
  5. Step 5: Solve for x
    x = 756,009,246,753.83/985,487.16
  6. Step 6: Final answer
    x = 767,142.67

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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.