Home / 563,738.28-777,952.90-309,088.84

Finding the Fourth Proportional to 563,738.28, 777,952.90 and 309,088.84

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Solution

The fourth proportional to 563,738.28, 777,952.90 and 309,088.84 is: 426,539.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,738.28 : 777,952.90 = 309,088.84 : x
  2. Step 2: Convert to fraction form
    563,738.28/777,952.90 = 309,088.84/x
  3. Step 3: Cross multiply
    563,738.28x = 777,952.90 × 309,088.84
  4. Step 4: Simplify right side
    563,738.28x = 240,456,559,435.64
  5. Step 5: Solve for x
    x = 240,456,559,435.64/563,738.28
  6. Step 6: Final answer
    x = 426,539.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.