Home / 771,479.04-1,157,218.68-372,045.36

Finding the Fourth Proportional to 771,479.04, 1,157,218.68 and 372,045.36

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Solution

The fourth proportional to 771,479.04, 1,157,218.68 and 372,045.36 is: 558,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,479.04 : 1,157,218.68 = 372,045.36 : x
  2. Step 2: Convert to fraction form
    771,479.04/1,157,218.68 = 372,045.36/x
  3. Step 3: Cross multiply
    771,479.04x = 1,157,218.68 × 372,045.36
  4. Step 4: Simplify right side
    771,479.04x = 430,537,840,399.33
  5. Step 5: Solve for x
    x = 430,537,840,399.33/771,479.04
  6. Step 6: Final answer
    x = 558,068.10

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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.