Home / 872,454.29-1,203,988.79-490,484.21

Finding the Fourth Proportional to 872,454.29, 1,203,988.79 and 490,484.21

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Solution

The fourth proportional to 872,454.29, 1,203,988.79 and 490,484.21 is: 676,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,454.29 : 1,203,988.79 = 490,484.21 : x
  2. Step 2: Convert to fraction form
    872,454.29/1,203,988.79 = 490,484.21/x
  3. Step 3: Cross multiply
    872,454.29x = 1,203,988.79 × 490,484.21
  4. Step 4: Simplify right side
    872,454.29x = 590,537,485,718.27
  5. Step 5: Solve for x
    x = 590,537,485,718.27/872,454.29
  6. Step 6: Final answer
    x = 676,869.26

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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.