Home / 660,927.12-912,087.72-359,126.16

Finding the Fourth Proportional to 660,927.12, 912,087.72 and 359,126.16

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Solution

The fourth proportional to 660,927.12, 912,087.72 and 359,126.16 is: 495,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,927.12 : 912,087.72 = 359,126.16 : x
  2. Step 2: Convert to fraction form
    660,927.12/912,087.72 = 359,126.16/x
  3. Step 3: Cross multiply
    660,927.12x = 912,087.72 × 359,126.16
  4. Step 4: Simplify right side
    660,927.12x = 327,554,560,466.76
  5. Step 5: Solve for x
    x = 327,554,560,466.76/660,927.12
  6. Step 6: Final answer
    x = 495,598.61

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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.