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Finding the Fourth Proportional to 517,020.19, 713,487.86 and 302,340.62

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Solution

The fourth proportional to 517,020.19, 713,487.86 and 302,340.62 is: 417,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,020.19 : 713,487.86 = 302,340.62 : x
  2. Step 2: Convert to fraction form
    517,020.19/713,487.86 = 302,340.62/x
  3. Step 3: Cross multiply
    517,020.19x = 713,487.86 × 302,340.62
  4. Step 4: Simplify right side
    517,020.19x = 215,716,363,360.67
  5. Step 5: Solve for x
    x = 215,716,363,360.67/517,020.19
  6. Step 6: Final answer
    x = 417,230.06

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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.