Home / 1,490,543.84-2,056,937.52-811,478.72

Finding the Fourth Proportional to 1,490,543.84, 2,056,937.52 and 811,478.72

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Solution

The fourth proportional to 1,490,543.84, 2,056,937.52 and 811,478.72 is: 1,119,833.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,543.84 : 2,056,937.52 = 811,478.72 : x
  2. Step 2: Convert to fraction form
    1,490,543.84/2,056,937.52 = 811,478.72/x
  3. Step 3: Cross multiply
    1,490,543.84x = 2,056,937.52 × 811,478.72
  4. Step 4: Simplify right side
    1,490,543.84x = 1,669,161,025,849.57
  5. Step 5: Solve for x
    x = 1,669,161,025,849.57/1,490,543.84
  6. Step 6: Final answer
    x = 1,119,833.57

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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.