Home / 864,038.90-1,293,790.35-609,947.30

Finding the Fourth Proportional to 864,038.90, 1,293,790.35 and 609,947.30

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Solution

The fourth proportional to 864,038.90, 1,293,790.35 and 609,947.30 is: 913,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,038.90 : 1,293,790.35 = 609,947.30 : x
  2. Step 2: Convert to fraction form
    864,038.90/1,293,790.35 = 609,947.30/x
  3. Step 3: Cross multiply
    864,038.90x = 1,293,790.35 × 609,947.30
  4. Step 4: Simplify right side
    864,038.90x = 789,143,930,748.56
  5. Step 5: Solve for x
    x = 789,143,930,748.56/864,038.90
  6. Step 6: Final answer
    x = 913,319.91

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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.