Home / 1,209,290.40-1,813,308.12-356,251.32

Finding the Fourth Proportional to 1,209,290.40, 1,813,308.12 and 356,251.32

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Solution

The fourth proportional to 1,209,290.40, 1,813,308.12 and 356,251.32 is: 534,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,290.40 : 1,813,308.12 = 356,251.32 : x
  2. Step 2: Convert to fraction form
    1,209,290.40/1,813,308.12 = 356,251.32/x
  3. Step 3: Cross multiply
    1,209,290.40x = 1,813,308.12 × 356,251.32
  4. Step 4: Simplify right side
    1,209,290.40x = 645,993,411,316.72
  5. Step 5: Solve for x
    x = 645,993,411,316.72/1,209,290.40
  6. Step 6: Final answer
    x = 534,192.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.