Home / 1,064,669.85-1,595,388.90-780,549.57

Finding the Fourth Proportional to 1,064,669.85, 1,595,388.90 and 780,549.57

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Solution

The fourth proportional to 1,064,669.85, 1,595,388.90 and 780,549.57 is: 1,169,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,669.85 : 1,595,388.90 = 780,549.57 : x
  2. Step 2: Convert to fraction form
    1,064,669.85/1,595,388.90 = 780,549.57/x
  3. Step 3: Cross multiply
    1,064,669.85x = 1,595,388.90 × 780,549.57
  4. Step 4: Simplify right side
    1,064,669.85x = 1,245,280,119,877.77
  5. Step 5: Solve for x
    x = 1,245,280,119,877.77/1,064,669.85
  6. Step 6: Final answer
    x = 1,169,639.70

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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.