Home / 1,205,285.20-1,807,870.20-406,488.40

Finding the Fourth Proportional to 1,205,285.20, 1,807,870.20 and 406,488.40

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Solution

The fourth proportional to 1,205,285.20, 1,807,870.20 and 406,488.40 is: 609,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,285.20 : 1,807,870.20 = 406,488.40 : x
  2. Step 2: Convert to fraction form
    1,205,285.20/1,807,870.20 = 406,488.40/x
  3. Step 3: Cross multiply
    1,205,285.20x = 1,807,870.20 × 406,488.40
  4. Step 4: Simplify right side
    1,205,285.20x = 734,878,265,005.68
  5. Step 5: Solve for x
    x = 734,878,265,005.68/1,205,285.20
  6. Step 6: Final answer
    x = 609,713.17

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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.