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Finding the Fourth Proportional to 520,118.04, 717,752.70 and 290,677.44

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Solution

The fourth proportional to 520,118.04, 717,752.70 and 290,677.44 is: 401,129.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,118.04 : 717,752.70 = 290,677.44 : x
  2. Step 2: Convert to fraction form
    520,118.04/717,752.70 = 290,677.44/x
  3. Step 3: Cross multiply
    520,118.04x = 717,752.70 × 290,677.44
  4. Step 4: Simplify right side
    520,118.04x = 208,634,517,389.09
  5. Step 5: Solve for x
    x = 208,634,517,389.09/520,118.04
  6. Step 6: Final answer
    x = 401,129.17

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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.