Home / 786,006.60-1,178,232.30-386,320.20

Finding the Fourth Proportional to 786,006.60, 1,178,232.30 and 386,320.20

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Solution

The fourth proportional to 786,006.60, 1,178,232.30 and 386,320.20 is: 579,098.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,006.60 : 1,178,232.30 = 386,320.20 : x
  2. Step 2: Convert to fraction form
    786,006.60/1,178,232.30 = 386,320.20/x
  3. Step 3: Cross multiply
    786,006.60x = 1,178,232.30 × 386,320.20
  4. Step 4: Simplify right side
    786,006.60x = 455,174,937,782.46
  5. Step 5: Solve for x
    x = 455,174,937,782.46/786,006.60
  6. Step 6: Final answer
    x = 579,098.11

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1.5x scale

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.