Home / 879,130.64-1,213,226.70-497,149.76

Finding the Fourth Proportional to 879,130.64, 1,213,226.70 and 497,149.76

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Solution

The fourth proportional to 879,130.64, 1,213,226.70 and 497,149.76 is: 686,081.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,130.64 : 1,213,226.70 = 497,149.76 : x
  2. Step 2: Convert to fraction form
    879,130.64/1,213,226.70 = 497,149.76/x
  3. Step 3: Cross multiply
    879,130.64x = 1,213,226.70 × 497,149.76
  4. Step 4: Simplify right side
    879,130.64x = 603,155,362,730.59
  5. Step 5: Solve for x
    x = 603,155,362,730.59/879,130.64
  6. Step 6: Final answer
    x = 686,081.61

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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.