Home / 711,809.02-982,296.53-389,519.18

Finding the Fourth Proportional to 711,809.02, 982,296.53 and 389,519.18

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Solution

The fourth proportional to 711,809.02, 982,296.53 and 389,519.18 is: 537,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,809.02 : 982,296.53 = 389,519.18 : x
  2. Step 2: Convert to fraction form
    711,809.02/982,296.53 = 389,519.18/x
  3. Step 3: Cross multiply
    711,809.02x = 982,296.53 × 389,519.18
  4. Step 4: Simplify right side
    711,809.02x = 382,623,342,311.99
  5. Step 5: Solve for x
    x = 382,623,342,311.99/711,809.02
  6. Step 6: Final answer
    x = 537,536.52

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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.