Home / 759,219.50-1,047,681.78-419,665.88

Finding the Fourth Proportional to 759,219.50, 1,047,681.78 and 419,665.88

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Solution

The fourth proportional to 759,219.50, 1,047,681.78 and 419,665.88 is: 579,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,219.50 : 1,047,681.78 = 419,665.88 : x
  2. Step 2: Convert to fraction form
    759,219.50/1,047,681.78 = 419,665.88/x
  3. Step 3: Cross multiply
    759,219.50x = 1,047,681.78 × 419,665.88
  4. Step 4: Simplify right side
    759,219.50x = 439,676,290,925.26
  5. Step 5: Solve for x
    x = 439,676,290,925.26/759,219.50
  6. Step 6: Final answer
    x = 579,116.18

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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.