Home / 915,740.48-1,373,807.24-308,588.72

Finding the Fourth Proportional to 915,740.48, 1,373,807.24 and 308,588.72

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Solution

The fourth proportional to 915,740.48, 1,373,807.24 and 308,588.72 is: 462,949.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,740.48 : 1,373,807.24 = 308,588.72 : x
  2. Step 2: Convert to fraction form
    915,740.48/1,373,807.24 = 308,588.72/x
  3. Step 3: Cross multiply
    915,740.48x = 1,373,807.24 × 308,588.72
  4. Step 4: Simplify right side
    915,740.48x = 423,941,417,718.33
  5. Step 5: Solve for x
    x = 423,941,417,718.33/915,740.48
  6. Step 6: Final answer
    x = 462,949.30

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1.5x scale

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.