Home / 779,601.20-1,075,849.64-421,905.20

Finding the Fourth Proportional to 779,601.20, 1,075,849.64 and 421,905.20

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Solution

The fourth proportional to 779,601.20, 1,075,849.64 and 421,905.20 is: 582,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,601.20 : 1,075,849.64 = 421,905.20 : x
  2. Step 2: Convert to fraction form
    779,601.20/1,075,849.64 = 421,905.20/x
  3. Step 3: Cross multiply
    779,601.20x = 1,075,849.64 × 421,905.20
  4. Step 4: Simplify right side
    779,601.20x = 453,906,550,045.35
  5. Step 5: Solve for x
    x = 453,906,550,045.35/779,601.20
  6. Step 6: Final answer
    x = 582,229.16

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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.