Home / 1,249,866.81-1,874,897.40-408,503.61

Finding the Fourth Proportional to 1,249,866.81, 1,874,897.40 and 408,503.61

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Solution

The fourth proportional to 1,249,866.81, 1,874,897.40 and 408,503.61 is: 612,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,866.81 : 1,874,897.40 = 408,503.61 : x
  2. Step 2: Convert to fraction form
    1,249,866.81/1,874,897.40 = 408,503.61/x
  3. Step 3: Cross multiply
    1,249,866.81x = 1,874,897.40 × 408,503.61
  4. Step 4: Simplify right side
    1,249,866.81x = 765,902,356,279.61
  5. Step 5: Solve for x
    x = 765,902,356,279.61/1,249,866.81
  6. Step 6: Final answer
    x = 612,787.18

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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.