Home / 872,721.77-1,204,348.16-490,751.28

Finding the Fourth Proportional to 872,721.77, 1,204,348.16 and 490,751.28

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Solution

The fourth proportional to 872,721.77, 1,204,348.16 and 490,751.28 is: 677,232.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,721.77 : 1,204,348.16 = 490,751.28 : x
  2. Step 2: Convert to fraction form
    872,721.77/1,204,348.16 = 490,751.28/x
  3. Step 3: Cross multiply
    872,721.77x = 1,204,348.16 × 490,751.28
  4. Step 4: Simplify right side
    872,721.77x = 591,035,402,312.52
  5. Step 5: Solve for x
    x = 591,035,402,312.52/872,721.77
  6. Step 6: Final answer
    x = 677,232.34

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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.