Home / 1,103,875.34-1,523,297.90-645,031.80

Finding the Fourth Proportional to 1,103,875.34, 1,523,297.90 and 645,031.80

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Solution

The fourth proportional to 1,103,875.34, 1,523,297.90 and 645,031.80 is: 890,114.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,875.34 : 1,523,297.90 = 645,031.80 : x
  2. Step 2: Convert to fraction form
    1,103,875.34/1,523,297.90 = 645,031.80/x
  3. Step 3: Cross multiply
    1,103,875.34x = 1,523,297.90 × 645,031.80
  4. Step 4: Simplify right side
    1,103,875.34x = 982,575,583,148.06
  5. Step 5: Solve for x
    x = 982,575,583,148.06/1,103,875.34
  6. Step 6: Final answer
    x = 890,114.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.