Home / 1,429,576.80-1,972,807.07-817,739.76

Finding the Fourth Proportional to 1,429,576.80, 1,972,807.07 and 817,739.76

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Solution

The fourth proportional to 1,429,576.80, 1,972,807.07 and 817,739.76 is: 1,128,475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,576.80 : 1,972,807.07 = 817,739.76 : x
  2. Step 2: Convert to fraction form
    1,429,576.80/1,972,807.07 = 817,739.76/x
  3. Step 3: Cross multiply
    1,429,576.80x = 1,972,807.07 × 817,739.76
  4. Step 4: Simplify right side
    1,429,576.80x = 1,613,242,779,948.10
  5. Step 5: Solve for x
    x = 1,613,242,779,948.10/1,429,576.80
  6. Step 6: Final answer
    x = 1,128,475.77

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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.