Home / 859,197.83-1,288,962.68-326,677.45

Finding the Fourth Proportional to 859,197.83, 1,288,962.68 and 326,677.45

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Solution

The fourth proportional to 859,197.83, 1,288,962.68 and 326,677.45 is: 490,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,197.83 : 1,288,962.68 = 326,677.45 : x
  2. Step 2: Convert to fraction form
    859,197.83/1,288,962.68 = 326,677.45/x
  3. Step 3: Cross multiply
    859,197.83x = 1,288,962.68 × 326,677.45
  4. Step 4: Simplify right side
    859,197.83x = 421,075,039,041.85
  5. Step 5: Solve for x
    x = 421,075,039,041.85/859,197.83
  6. Step 6: Final answer
    x = 490,079.27

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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.