Home / 1,490,785.20-2,238,510.60-860,929.20

Finding the Fourth Proportional to 1,490,785.20, 2,238,510.60 and 860,929.20

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Solution

The fourth proportional to 1,490,785.20, 2,238,510.60 and 860,929.20 is: 1,292,740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,785.20 : 2,238,510.60 = 860,929.20 : x
  2. Step 2: Convert to fraction form
    1,490,785.20/2,238,510.60 = 860,929.20/x
  3. Step 3: Cross multiply
    1,490,785.20x = 2,238,510.60 × 860,929.20
  4. Step 4: Simplify right side
    1,490,785.20x = 1,927,199,140,049.52
  5. Step 5: Solve for x
    x = 1,927,199,140,049.52/1,490,785.20
  6. Step 6: Final answer
    x = 1,292,740.99

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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.