Home / 915,629.80-1,373,444.70-284,607.40

Finding the Fourth Proportional to 915,629.80, 1,373,444.70 and 284,607.40

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Solution

The fourth proportional to 915,629.80, 1,373,444.70 and 284,607.40 is: 426,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,629.80 : 1,373,444.70 = 284,607.40 : x
  2. Step 2: Convert to fraction form
    915,629.80/1,373,444.70 = 284,607.40/x
  3. Step 3: Cross multiply
    915,629.80x = 1,373,444.70 × 284,607.40
  4. Step 4: Simplify right side
    915,629.80x = 390,892,525,110.78
  5. Step 5: Solve for x
    x = 390,892,525,110.78/915,629.80
  6. Step 6: Final answer
    x = 426,911.10

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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.