Home / 1,077,931.80-1,616,621.90-319,595.94

Finding the Fourth Proportional to 1,077,931.80, 1,616,621.90 and 319,595.94

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Solution

The fourth proportional to 1,077,931.80, 1,616,621.90 and 319,595.94 is: 479,312.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,931.80 : 1,616,621.90 = 319,595.94 : x
  2. Step 2: Convert to fraction form
    1,077,931.80/1,616,621.90 = 319,595.94/x
  3. Step 3: Cross multiply
    1,077,931.80x = 1,616,621.90 × 319,595.94
  4. Step 4: Simplify right side
    1,077,931.80x = 516,665,795,755.09
  5. Step 5: Solve for x
    x = 516,665,795,755.09/1,077,931.80
  6. Step 6: Final answer
    x = 479,312.14

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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.