Home / 786,002.10-1,178,225.55-386,315.70

Finding the Fourth Proportional to 786,002.10, 1,178,225.55 and 386,315.70

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Solution

The fourth proportional to 786,002.10, 1,178,225.55 and 386,315.70 is: 579,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,002.10 : 1,178,225.55 = 386,315.70 : x
  2. Step 2: Convert to fraction form
    786,002.10/1,178,225.55 = 386,315.70/x
  3. Step 3: Cross multiply
    786,002.10x = 1,178,225.55 × 386,315.70
  4. Step 4: Simplify right side
    786,002.10x = 455,167,028,106.14
  5. Step 5: Solve for x
    x = 455,167,028,106.14/786,002.10
  6. Step 6: Final answer
    x = 579,091.36

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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.