Home / 711,810.42-982,298.48-389,520.59

Finding the Fourth Proportional to 711,810.42, 982,298.48 and 389,520.59

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Solution

The fourth proportional to 711,810.42, 982,298.48 and 389,520.59 is: 537,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,810.42 : 982,298.48 = 389,520.59 : x
  2. Step 2: Convert to fraction form
    711,810.42/982,298.48 = 389,520.59/x
  3. Step 3: Cross multiply
    711,810.42x = 982,298.48 × 389,520.59
  4. Step 4: Simplify right side
    711,810.42x = 382,625,476,626.61
  5. Step 5: Solve for x
    x = 382,625,476,626.61/711,810.42
  6. Step 6: Final answer
    x = 537,538.46

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1.5x scale

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.