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Finding the Fourth Proportional to 520,225.50, 717,969.51 and 293,885.58

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Solution

The fourth proportional to 520,225.50, 717,969.51 and 293,885.58 is: 405,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,225.50 : 717,969.51 = 293,885.58 : x
  2. Step 2: Convert to fraction form
    520,225.50/717,969.51 = 293,885.58/x
  3. Step 3: Cross multiply
    520,225.50x = 717,969.51 × 293,885.58
  4. Step 4: Simplify right side
    520,225.50x = 211,000,885,868.67
  5. Step 5: Solve for x
    x = 211,000,885,868.67/520,225.50
  6. Step 6: Final answer
    x = 405,595.05

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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.