Home / 1,391,000.70-2,085,334.65-726,152.70

Finding the Fourth Proportional to 1,391,000.70, 2,085,334.65 and 726,152.70

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Solution

The fourth proportional to 1,391,000.70, 2,085,334.65 and 726,152.70 is: 1,088,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,000.70 : 2,085,334.65 = 726,152.70 : x
  2. Step 2: Convert to fraction form
    1,391,000.70/2,085,334.65 = 726,152.70/x
  3. Step 3: Cross multiply
    1,391,000.70x = 2,085,334.65 × 726,152.70
  4. Step 4: Simplify right side
    1,391,000.70x = 1,514,271,386,501.06
  5. Step 5: Solve for x
    x = 1,514,271,386,501.06/1,391,000.70
  6. Step 6: Final answer
    x = 1,088,620.15

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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.