Home / 1,698,657.90-2,547,986.85-687,777.90

Finding the Fourth Proportional to 1,698,657.90, 2,547,986.85 and 687,777.90

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Solution

The fourth proportional to 1,698,657.90, 2,547,986.85 and 687,777.90 is: 1,031,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,657.90 : 2,547,986.85 = 687,777.90 : x
  2. Step 2: Convert to fraction form
    1,698,657.90/2,547,986.85 = 687,777.90/x
  3. Step 3: Cross multiply
    1,698,657.90x = 2,547,986.85 × 687,777.90
  4. Step 4: Simplify right side
    1,698,657.90x = 1,752,449,044,920.62
  5. Step 5: Solve for x
    x = 1,752,449,044,920.62/1,698,657.90
  6. Step 6: Final answer
    x = 1,031,666.85

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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.