Home / 712,349.13-983,043.42-385,665.60

Finding the Fourth Proportional to 712,349.13, 983,043.42 and 385,665.60

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Solution

The fourth proportional to 712,349.13, 983,043.42 and 385,665.60 is: 532,219.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,349.13 : 983,043.42 = 385,665.60 : x
  2. Step 2: Convert to fraction form
    712,349.13/983,043.42 = 385,665.60/x
  3. Step 3: Cross multiply
    712,349.13x = 983,043.42 × 385,665.60
  4. Step 4: Simplify right side
    712,349.13x = 379,126,030,400.35
  5. Step 5: Solve for x
    x = 379,126,030,400.35/712,349.13
  6. Step 6: Final answer
    x = 532,219.41

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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.