Home / 745,387.19-1,116,670.16-440,869.31

Finding the Fourth Proportional to 745,387.19, 1,116,670.16 and 440,869.31

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Solution

The fourth proportional to 745,387.19, 1,116,670.16 and 440,869.31 is: 660,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,387.19 : 1,116,670.16 = 440,869.31 : x
  2. Step 2: Convert to fraction form
    745,387.19/1,116,670.16 = 440,869.31/x
  3. Step 3: Cross multiply
    745,387.19x = 1,116,670.16 × 440,869.31
  4. Step 4: Simplify right side
    745,387.19x = 492,305,598,455.61
  5. Step 5: Solve for x
    x = 492,305,598,455.61/745,387.19
  6. Step 6: Final answer
    x = 660,469.63

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1.5x scale

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.