Home / 717,672.40-1,075,180.20-418,296.40

Finding the Fourth Proportional to 717,672.40, 1,075,180.20 and 418,296.40

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Solution

The fourth proportional to 717,672.40, 1,075,180.20 and 418,296.40 is: 626,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,672.40 : 1,075,180.20 = 418,296.40 : x
  2. Step 2: Convert to fraction form
    717,672.40/1,075,180.20 = 418,296.40/x
  3. Step 3: Cross multiply
    717,672.40x = 1,075,180.20 × 418,296.40
  4. Step 4: Simplify right side
    717,672.40x = 449,744,007,011.28
  5. Step 5: Solve for x
    x = 449,744,007,011.28/717,672.40
  6. Step 6: Final answer
    x = 626,670.34

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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.