Home / 711,661.02-981,995.18-425,120.28

Finding the Fourth Proportional to 711,661.02, 981,995.18 and 425,120.28

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Solution

The fourth proportional to 711,661.02, 981,995.18 and 425,120.28 is: 586,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,661.02 : 981,995.18 = 425,120.28 : x
  2. Step 2: Convert to fraction form
    711,661.02/981,995.18 = 425,120.28/x
  3. Step 3: Cross multiply
    711,661.02x = 981,995.18 × 425,120.28
  4. Step 4: Simplify right side
    711,661.02x = 417,466,065,880.25
  5. Step 5: Solve for x
    x = 417,466,065,880.25/711,661.02
  6. Step 6: Final answer
    x = 586,608.03

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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.