Home / 390,785.24-585,871.63-154,304.93

Finding the Fourth Proportional to 390,785.24, 585,871.63 and 154,304.93

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Solution

The fourth proportional to 390,785.24, 585,871.63 and 154,304.93 is: 231,336.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,785.24 : 585,871.63 = 154,304.93 : x
  2. Step 2: Convert to fraction form
    390,785.24/585,871.63 = 154,304.93/x
  3. Step 3: Cross multiply
    390,785.24x = 585,871.63 × 154,304.93
  4. Step 4: Simplify right side
    390,785.24x = 90,402,877,926.78
  5. Step 5: Solve for x
    x = 90,402,877,926.78/390,785.24
  6. Step 6: Final answer
    x = 231,336.47

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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.