Home / 915,774.92-1,263,685.91-507,875.52

Finding the Fourth Proportional to 915,774.92, 1,263,685.91 and 507,875.52

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Solution

The fourth proportional to 915,774.92, 1,263,685.91 and 507,875.52 is: 700,821.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,774.92 : 1,263,685.91 = 507,875.52 : x
  2. Step 2: Convert to fraction form
    915,774.92/1,263,685.91 = 507,875.52/x
  3. Step 3: Cross multiply
    915,774.92x = 1,263,685.91 × 507,875.52
  4. Step 4: Simplify right side
    915,774.92x = 641,795,136,118.55
  5. Step 5: Solve for x
    x = 641,795,136,118.55/915,774.92
  6. Step 6: Final answer
    x = 700,821.92

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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.