Home / 945,429.64-1,304,701.23-515,711.68

Finding the Fourth Proportional to 945,429.64, 1,304,701.23 and 515,711.68

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Solution

The fourth proportional to 945,429.64, 1,304,701.23 and 515,711.68 is: 711,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,429.64 : 1,304,701.23 = 515,711.68 : x
  2. Step 2: Convert to fraction form
    945,429.64/1,304,701.23 = 515,711.68/x
  3. Step 3: Cross multiply
    945,429.64x = 1,304,701.23 × 515,711.68
  4. Step 4: Simplify right side
    945,429.64x = 672,849,663,221.37
  5. Step 5: Solve for x
    x = 672,849,663,221.37/945,429.64
  6. Step 6: Final answer
    x = 711,686.66

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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.