Home / 872,971.94-1,309,076.16-440,423.28

Finding the Fourth Proportional to 872,971.94, 1,309,076.16 and 440,423.28

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Solution

The fourth proportional to 872,971.94, 1,309,076.16 and 440,423.28 is: 660,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,971.94 : 1,309,076.16 = 440,423.28 : x
  2. Step 2: Convert to fraction form
    872,971.94/1,309,076.16 = 440,423.28/x
  3. Step 3: Cross multiply
    872,971.94x = 1,309,076.16 × 440,423.28
  4. Step 4: Simplify right side
    872,971.94x = 576,547,616,157.01
  5. Step 5: Solve for x
    x = 576,547,616,157.01/872,971.94
  6. Step 6: Final answer
    x = 660,442.32

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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.