Home / 1,220,502.72-1,684,244.16-676,646.40

Finding the Fourth Proportional to 1,220,502.72, 1,684,244.16 and 676,646.40

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Solution

The fourth proportional to 1,220,502.72, 1,684,244.16 and 676,646.40 is: 933,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,502.72 : 1,684,244.16 = 676,646.40 : x
  2. Step 2: Convert to fraction form
    1,220,502.72/1,684,244.16 = 676,646.40/x
  3. Step 3: Cross multiply
    1,220,502.72x = 1,684,244.16 × 676,646.40
  4. Step 4: Simplify right side
    1,220,502.72x = 1,139,637,747,585.02
  5. Step 5: Solve for x
    x = 1,139,637,747,585.02/1,220,502.72
  6. Step 6: Final answer
    x = 933,744.54

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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.