Home / 767,911.50-1,059,586.65-445,547.70

Finding the Fourth Proportional to 767,911.50, 1,059,586.65 and 445,547.70

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Solution

The fourth proportional to 767,911.50, 1,059,586.65 and 445,547.70 is: 614,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,911.50 : 1,059,586.65 = 445,547.70 : x
  2. Step 2: Convert to fraction form
    767,911.50/1,059,586.65 = 445,547.70/x
  3. Step 3: Cross multiply
    767,911.50x = 1,059,586.65 × 445,547.70
  4. Step 4: Simplify right side
    767,911.50x = 472,096,394,858.21
  5. Step 5: Solve for x
    x = 472,096,394,858.21/767,911.50
  6. Step 6: Final answer
    x = 614,779.69

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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.