Home / 717,543.28-1,075,787.88-343,828.72

Finding the Fourth Proportional to 717,543.28, 1,075,787.88 and 343,828.72

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Solution

The fourth proportional to 717,543.28, 1,075,787.88 and 343,828.72 is: 515,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,543.28 : 1,075,787.88 = 343,828.72 : x
  2. Step 2: Convert to fraction form
    717,543.28/1,075,787.88 = 343,828.72/x
  3. Step 3: Cross multiply
    717,543.28x = 1,075,787.88 × 343,828.72
  4. Step 4: Simplify right side
    717,543.28x = 369,886,769,771.91
  5. Step 5: Solve for x
    x = 369,886,769,771.91/717,543.28
  6. Step 6: Final answer
    x = 515,490.54

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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.