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Finding the Fourth Proportional to 528,075.80, 792,113.70 and 329,010.20

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Solution

The fourth proportional to 528,075.80, 792,113.70 and 329,010.20 is: 493,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,075.80 : 792,113.70 = 329,010.20 : x
  2. Step 2: Convert to fraction form
    528,075.80/792,113.70 = 329,010.20/x
  3. Step 3: Cross multiply
    528,075.80x = 792,113.70 × 329,010.20
  4. Step 4: Simplify right side
    528,075.80x = 260,613,486,859.74
  5. Step 5: Solve for x
    x = 260,613,486,859.74/528,075.80
  6. Step 6: Final answer
    x = 493,515.30

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Similar ratio
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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.