Home / 502,813.42-693,896.95-306,591.40

Finding the Fourth Proportional to 502,813.42, 693,896.95 and 306,591.40

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Solution

The fourth proportional to 502,813.42, 693,896.95 and 306,591.40 is: 423,104.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,813.42 : 693,896.95 = 306,591.40 : x
  2. Step 2: Convert to fraction form
    502,813.42/693,896.95 = 306,591.40/x
  3. Step 3: Cross multiply
    502,813.42x = 693,896.95 × 306,591.40
  4. Step 4: Simplify right side
    502,813.42x = 212,742,837,356.23
  5. Step 5: Solve for x
    x = 212,742,837,356.23/502,813.42
  6. Step 6: Final answer
    x = 423,104.93

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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.