Home / 717,831.20-1,075,450.80-418,066.40

Finding the Fourth Proportional to 717,831.20, 1,075,450.80 and 418,066.40

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Solution

The fourth proportional to 717,831.20, 1,075,450.80 and 418,066.40 is: 626,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,831.20 : 1,075,450.80 = 418,066.40 : x
  2. Step 2: Convert to fraction form
    717,831.20/1,075,450.80 = 418,066.40/x
  3. Step 3: Cross multiply
    717,831.20x = 1,075,450.80 × 418,066.40
  4. Step 4: Simplify right side
    717,831.20x = 449,609,844,333.12
  5. Step 5: Solve for x
    x = 449,609,844,333.12/717,831.20
  6. Step 6: Final answer
    x = 626,344.81

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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.