Home / 672,285.12-927,749.04-370,479.36

Finding the Fourth Proportional to 672,285.12, 927,749.04 and 370,479.36

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Solution

The fourth proportional to 672,285.12, 927,749.04 and 370,479.36 is: 511,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,285.12 : 927,749.04 = 370,479.36 : x
  2. Step 2: Convert to fraction form
    672,285.12/927,749.04 = 370,479.36/x
  3. Step 3: Cross multiply
    672,285.12x = 927,749.04 × 370,479.36
  4. Step 4: Simplify right side
    672,285.12x = 343,711,870,579.81
  5. Step 5: Solve for x
    x = 343,711,870,579.81/672,285.12
  6. Step 6: Final answer
    x = 511,259.08

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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.