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Finding the Fourth Proportional to 608,386.85, 839,568.95 and 336,466.20

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Solution

The fourth proportional to 608,386.85, 839,568.95 and 336,466.20 is: 464,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,386.85 : 839,568.95 = 336,466.20 : x
  2. Step 2: Convert to fraction form
    608,386.85/839,568.95 = 336,466.20/x
  3. Step 3: Cross multiply
    608,386.85x = 839,568.95 × 336,466.20
  4. Step 4: Simplify right side
    608,386.85x = 282,486,576,972.29
  5. Step 5: Solve for x
    x = 282,486,576,972.29/608,386.85
  6. Step 6: Final answer
    x = 464,320.65

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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.