Home / 1,340,547.40-2,010,869.70-394,013.80

Finding the Fourth Proportional to 1,340,547.40, 2,010,869.70 and 394,013.80

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Solution

The fourth proportional to 1,340,547.40, 2,010,869.70 and 394,013.80 is: 591,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,547.40 : 2,010,869.70 = 394,013.80 : x
  2. Step 2: Convert to fraction form
    1,340,547.40/2,010,869.70 = 394,013.80/x
  3. Step 3: Cross multiply
    1,340,547.40x = 2,010,869.70 × 394,013.80
  4. Step 4: Simplify right side
    1,340,547.40x = 792,310,411,801.86
  5. Step 5: Solve for x
    x = 792,310,411,801.86/1,340,547.40
  6. Step 6: Final answer
    x = 591,034.98

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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.