Home / 915,285.69-1,262,939.24-609,817.68

Finding the Fourth Proportional to 915,285.69, 1,262,939.24 and 609,817.68

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Solution

The fourth proportional to 915,285.69, 1,262,939.24 and 609,817.68 is: 841,445.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,285.69 : 1,262,939.24 = 609,817.68 : x
  2. Step 2: Convert to fraction form
    915,285.69/1,262,939.24 = 609,817.68/x
  3. Step 3: Cross multiply
    915,285.69x = 1,262,939.24 × 609,817.68
  4. Step 4: Simplify right side
    915,285.69x = 770,162,678,842.31
  5. Step 5: Solve for x
    x = 770,162,678,842.31/915,285.69
  6. Step 6: Final answer
    x = 841,445.12

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1.5x scale

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.