Home / 915,115.92-1,262,935.53-507,345.66

Finding the Fourth Proportional to 915,115.92, 1,262,935.53 and 507,345.66

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Solution

The fourth proportional to 915,115.92, 1,262,935.53 and 507,345.66 is: 700,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,115.92 : 1,262,935.53 = 507,345.66 : x
  2. Step 2: Convert to fraction form
    915,115.92/1,262,935.53 = 507,345.66/x
  3. Step 3: Cross multiply
    915,115.92x = 1,262,935.53 × 507,345.66
  4. Step 4: Simplify right side
    915,115.92x = 640,744,860,005.30
  5. Step 5: Solve for x
    x = 640,744,860,005.30/915,115.92
  6. Step 6: Final answer
    x = 700,178.90

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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.