Home / 784,824.90-1,177,237.35-385,721.70

Finding the Fourth Proportional to 784,824.90, 1,177,237.35 and 385,721.70

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Solution

The fourth proportional to 784,824.90, 1,177,237.35 and 385,721.70 is: 578,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,824.90 : 1,177,237.35 = 385,721.70 : x
  2. Step 2: Convert to fraction form
    784,824.90/1,177,237.35 = 385,721.70/x
  3. Step 3: Cross multiply
    784,824.90x = 1,177,237.35 × 385,721.70
  4. Step 4: Simplify right side
    784,824.90x = 454,085,991,945.50
  5. Step 5: Solve for x
    x = 454,085,991,945.50/784,824.90
  6. Step 6: Final answer
    x = 578,582.55

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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.