Home / 539,075.20-808,612.80-329,123.20

Finding the Fourth Proportional to 539,075.20, 808,612.80 and 329,123.20

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Solution

The fourth proportional to 539,075.20, 808,612.80 and 329,123.20 is: 493,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,075.20 : 808,612.80 = 329,123.20 : x
  2. Step 2: Convert to fraction form
    539,075.20/808,612.80 = 329,123.20/x
  3. Step 3: Cross multiply
    539,075.20x = 808,612.80 × 329,123.20
  4. Step 4: Simplify right side
    539,075.20x = 266,133,232,296.96
  5. Step 5: Solve for x
    x = 266,133,232,296.96/539,075.20
  6. Step 6: Final answer
    x = 493,684.80

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Double scale
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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.