Home / 680,553.80-1,020,830.70-477,600.20

Finding the Fourth Proportional to 680,553.80, 1,020,830.70 and 477,600.20

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Solution

The fourth proportional to 680,553.80, 1,020,830.70 and 477,600.20 is: 716,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,553.80 : 1,020,830.70 = 477,600.20 : x
  2. Step 2: Convert to fraction form
    680,553.80/1,020,830.70 = 477,600.20/x
  3. Step 3: Cross multiply
    680,553.80x = 1,020,830.70 × 477,600.20
  4. Step 4: Simplify right side
    680,553.80x = 487,548,946,486.14
  5. Step 5: Solve for x
    x = 487,548,946,486.14/680,553.80
  6. Step 6: Final answer
    x = 716,400.30

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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.