Home / 790,911.15-1,091,477.40-485,156.13

Finding the Fourth Proportional to 790,911.15, 1,091,477.40 and 485,156.13

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Solution

The fourth proportional to 790,911.15, 1,091,477.40 and 485,156.13 is: 669,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,911.15 : 1,091,477.40 = 485,156.13 : x
  2. Step 2: Convert to fraction form
    790,911.15/1,091,477.40 = 485,156.13/x
  3. Step 3: Cross multiply
    790,911.15x = 1,091,477.40 × 485,156.13
  4. Step 4: Simplify right side
    790,911.15x = 529,536,951,366.46
  5. Step 5: Solve for x
    x = 529,536,951,366.46/790,911.15
  6. Step 6: Final answer
    x = 669,527.74

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Double scale
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1.5x scale

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.