Home / 1,248,336.20-1,867,838.70-828,432.20

Finding the Fourth Proportional to 1,248,336.20, 1,867,838.70 and 828,432.20

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Solution

The fourth proportional to 1,248,336.20, 1,867,838.70 and 828,432.20 is: 1,239,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,336.20 : 1,867,838.70 = 828,432.20 : x
  2. Step 2: Convert to fraction form
    1,248,336.20/1,867,838.70 = 828,432.20/x
  3. Step 3: Cross multiply
    1,248,336.20x = 1,867,838.70 × 828,432.20
  4. Step 4: Simplify right side
    1,248,336.20x = 1,547,377,723,486.14
  5. Step 5: Solve for x
    x = 1,547,377,723,486.14/1,248,336.20
  6. Step 6: Final answer
    x = 1,239,552.07

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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.