Home / 578,699.58-798,587.28-320,566.18

Finding the Fourth Proportional to 578,699.58, 798,587.28 and 320,566.18

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Solution

The fourth proportional to 578,699.58, 798,587.28 and 320,566.18 is: 442,371.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,699.58 : 798,587.28 = 320,566.18 : x
  2. Step 2: Convert to fraction form
    578,699.58/798,587.28 = 320,566.18/x
  3. Step 3: Cross multiply
    578,699.58x = 798,587.28 × 320,566.18
  4. Step 4: Simplify right side
    578,699.58x = 256,000,073,746.19
  5. Step 5: Solve for x
    x = 256,000,073,746.19/578,699.58
  6. Step 6: Final answer
    x = 442,371.28

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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.