Home / 711,518.34-981,913.68-389,242.02

Finding the Fourth Proportional to 711,518.34, 981,913.68 and 389,242.02

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Solution

The fourth proportional to 711,518.34, 981,913.68 and 389,242.02 is: 537,164.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,518.34 : 981,913.68 = 389,242.02 : x
  2. Step 2: Convert to fraction form
    711,518.34/981,913.68 = 389,242.02/x
  3. Step 3: Cross multiply
    711,518.34x = 981,913.68 × 389,242.02
  4. Step 4: Simplify right side
    711,518.34x = 382,202,064,268.83
  5. Step 5: Solve for x
    x = 382,202,064,268.83/711,518.34
  6. Step 6: Final answer
    x = 537,164.04

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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.