Home / 1,456,116.48-2,009,509.17-811,541.28

Finding the Fourth Proportional to 1,456,116.48, 2,009,509.17 and 811,541.28

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Solution

The fourth proportional to 1,456,116.48, 2,009,509.17 and 811,541.28 is: 1,119,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,116.48 : 2,009,509.17 = 811,541.28 : x
  2. Step 2: Convert to fraction form
    1,456,116.48/2,009,509.17 = 811,541.28/x
  3. Step 3: Cross multiply
    1,456,116.48x = 2,009,509.17 × 811,541.28
  4. Step 4: Simplify right side
    1,456,116.48x = 1,630,799,648,485.92
  5. Step 5: Solve for x
    x = 1,630,799,648,485.92/1,456,116.48
  6. Step 6: Final answer
    x = 1,119,965.11

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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.