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Finding the Fourth Proportional to 520,330.88, 779,888.16 and 220,710.08

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Solution

The fourth proportional to 520,330.88, 779,888.16 and 220,710.08 is: 330,807.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,330.88 : 779,888.16 = 220,710.08 : x
  2. Step 2: Convert to fraction form
    520,330.88/779,888.16 = 220,710.08/x
  3. Step 3: Cross multiply
    520,330.88x = 779,888.16 × 220,710.08
  4. Step 4: Simplify right side
    520,330.88x = 172,129,178,184.65
  5. Step 5: Solve for x
    x = 172,129,178,184.65/520,330.88
  6. Step 6: Final answer
    x = 330,807.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.