Home / 578,721.60-798,606.72-320,584.32

Finding the Fourth Proportional to 578,721.60, 798,606.72 and 320,584.32

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Solution

The fourth proportional to 578,721.60, 798,606.72 and 320,584.32 is: 442,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,721.60 : 798,606.72 = 320,584.32 : x
  2. Step 2: Convert to fraction form
    578,721.60/798,606.72 = 320,584.32/x
  3. Step 3: Cross multiply
    578,721.60x = 798,606.72 × 320,584.32
  4. Step 4: Simplify right side
    578,721.60x = 256,020,792,278.63
  5. Step 5: Solve for x
    x = 256,020,792,278.63/578,721.60
  6. Step 6: Final answer
    x = 442,390.25

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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.