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Finding the Fourth Proportional to 578,760.08, 798,670.30 and 320,626.40

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Solution

The fourth proportional to 578,760.08, 798,670.30 and 320,626.40 is: 442,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,760.08 : 798,670.30 = 320,626.40 : x
  2. Step 2: Convert to fraction form
    578,760.08/798,670.30 = 320,626.40/x
  3. Step 3: Cross multiply
    578,760.08x = 798,670.30 × 320,626.40
  4. Step 4: Simplify right side
    578,760.08x = 256,074,783,075.92
  5. Step 5: Solve for x
    x = 256,074,783,075.92/578,760.08
  6. Step 6: Final answer
    x = 442,454.12

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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.