Home / 1,500,820.08-2,071,154.52-821,819.76

Finding the Fourth Proportional to 1,500,820.08, 2,071,154.52 and 821,819.76

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Solution

The fourth proportional to 1,500,820.08, 2,071,154.52 and 821,819.76 is: 1,134,123.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,820.08 : 2,071,154.52 = 821,819.76 : x
  2. Step 2: Convert to fraction form
    1,500,820.08/2,071,154.52 = 821,819.76/x
  3. Step 3: Cross multiply
    1,500,820.08x = 2,071,154.52 × 821,819.76
  4. Step 4: Simplify right side
    1,500,820.08x = 1,702,115,710,549.32
  5. Step 5: Solve for x
    x = 1,702,115,710,549.32/1,500,820.08
  6. Step 6: Final answer
    x = 1,134,123.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.