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Finding the Fourth Proportional to 578,925.16, 798,904.76 and 320,799.86

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Solution

The fourth proportional to 578,925.16, 798,904.76 and 320,799.86 is: 442,697.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,925.16 : 798,904.76 = 320,799.86 : x
  2. Step 2: Convert to fraction form
    578,925.16/798,904.76 = 320,799.86/x
  3. Step 3: Cross multiply
    578,925.16x = 798,904.76 × 320,799.86
  4. Step 4: Simplify right side
    578,925.16x = 256,288,532,558.70
  5. Step 5: Solve for x
    x = 256,288,532,558.70/578,925.16
  6. Step 6: Final answer
    x = 442,697.18

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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.