Home / 1,485,210.18-2,049,238.81-840,630.41

Finding the Fourth Proportional to 1,485,210.18, 2,049,238.81 and 840,630.41

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Solution

The fourth proportional to 1,485,210.18, 2,049,238.81 and 840,630.41 is: 1,159,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,210.18 : 2,049,238.81 = 840,630.41 : x
  2. Step 2: Convert to fraction form
    1,485,210.18/2,049,238.81 = 840,630.41/x
  3. Step 3: Cross multiply
    1,485,210.18x = 2,049,238.81 × 840,630.41
  4. Step 4: Simplify right side
    1,485,210.18x = 1,722,652,461,038.21
  5. Step 5: Solve for x
    x = 1,722,652,461,038.21/1,485,210.18
  6. Step 6: Final answer
    x = 1,159,871.16

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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.