Home / 945,436.89-1,304,711.24-515,718.93

Finding the Fourth Proportional to 945,436.89, 1,304,711.24 and 515,718.93

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Solution

The fourth proportional to 945,436.89, 1,304,711.24 and 515,718.93 is: 711,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,436.89 : 1,304,711.24 = 515,718.93 : x
  2. Step 2: Convert to fraction form
    945,436.89/1,304,711.24 = 515,718.93/x
  3. Step 3: Cross multiply
    945,436.89x = 1,304,711.24 × 515,718.93
  4. Step 4: Simplify right side
    945,436.89x = 672,864,282,073.18
  5. Step 5: Solve for x
    x = 672,864,282,073.18/945,436.89
  6. Step 6: Final answer
    x = 711,696.67

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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.