Home / 959,685.47-1,439,524.04-390,939.72

Finding the Fourth Proportional to 959,685.47, 1,439,524.04 and 390,939.72

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Solution

The fourth proportional to 959,685.47, 1,439,524.04 and 390,939.72 is: 586,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,685.47 : 1,439,524.04 = 390,939.72 : x
  2. Step 2: Convert to fraction form
    959,685.47/1,439,524.04 = 390,939.72/x
  3. Step 3: Cross multiply
    959,685.47x = 1,439,524.04 × 390,939.72
  4. Step 4: Simplify right side
    959,685.47x = 562,767,117,777.96
  5. Step 5: Solve for x
    x = 562,767,117,777.96/959,685.47
  6. Step 6: Final answer
    x = 586,407.88

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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.