Home / 565,631.18-780,459.10-317,281.13

Finding the Fourth Proportional to 565,631.18, 780,459.10 and 317,281.13

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Solution

The fourth proportional to 565,631.18, 780,459.10 and 317,281.13 is: 437,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,631.18 : 780,459.10 = 317,281.13 : x
  2. Step 2: Convert to fraction form
    565,631.18/780,459.10 = 317,281.13/x
  3. Step 3: Cross multiply
    565,631.18x = 780,459.10 × 317,281.13
  4. Step 4: Simplify right side
    565,631.18x = 247,624,945,166.78
  5. Step 5: Solve for x
    x = 247,624,945,166.78/565,631.18
  6. Step 6: Final answer
    x = 437,785.18

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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.