Home / 1,547,819.60-2,321,729.40-425,886.80

Finding the Fourth Proportional to 1,547,819.60, 2,321,729.40 and 425,886.80

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Solution

The fourth proportional to 1,547,819.60, 2,321,729.40 and 425,886.80 is: 638,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,819.60 : 2,321,729.40 = 425,886.80 : x
  2. Step 2: Convert to fraction form
    1,547,819.60/2,321,729.40 = 425,886.80/x
  3. Step 3: Cross multiply
    1,547,819.60x = 2,321,729.40 × 425,886.80
  4. Step 4: Simplify right side
    1,547,819.60x = 988,793,904,631.92
  5. Step 5: Solve for x
    x = 988,793,904,631.92/1,547,819.60
  6. Step 6: Final answer
    x = 638,830.20

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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.