Home / 761,628.60-1,142,114.85-382,402.80

Finding the Fourth Proportional to 761,628.60, 1,142,114.85 and 382,402.80

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Solution

The fourth proportional to 761,628.60, 1,142,114.85 and 382,402.80 is: 573,439.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,628.60 : 1,142,114.85 = 382,402.80 : x
  2. Step 2: Convert to fraction form
    761,628.60/1,142,114.85 = 382,402.80/x
  3. Step 3: Cross multiply
    761,628.60x = 1,142,114.85 × 382,402.80
  4. Step 4: Simplify right side
    761,628.60x = 436,747,916,561.58
  5. Step 5: Solve for x
    x = 436,747,916,561.58/761,628.60
  6. Step 6: Final answer
    x = 573,439.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.