Home / 986,746.11-1,480,709.63-425,780.61

Finding the Fourth Proportional to 986,746.11, 1,480,709.63 and 425,780.61

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Solution

The fourth proportional to 986,746.11, 1,480,709.63 and 425,780.61 is: 638,925.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,746.11 : 1,480,709.63 = 425,780.61 : x
  2. Step 2: Convert to fraction form
    986,746.11/1,480,709.63 = 425,780.61/x
  3. Step 3: Cross multiply
    986,746.11x = 1,480,709.63 × 425,780.61
  4. Step 4: Simplify right side
    986,746.11x = 630,457,449,494.27
  5. Step 5: Solve for x
    x = 630,457,449,494.27/986,746.11
  6. Step 6: Final answer
    x = 638,925.70

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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.