Home / 1,543,603.70-2,315,405.55-478,637.30

Finding the Fourth Proportional to 1,543,603.70, 2,315,405.55 and 478,637.30

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Solution

The fourth proportional to 1,543,603.70, 2,315,405.55 and 478,637.30 is: 717,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,543,603.70 : 2,315,405.55 = 478,637.30 : x
  2. Step 2: Convert to fraction form
    1,543,603.70/2,315,405.55 = 478,637.30/x
  3. Step 3: Cross multiply
    1,543,603.70x = 2,315,405.55 × 478,637.30
  4. Step 4: Simplify right side
    1,543,603.70x = 1,108,239,460,857.01
  5. Step 5: Solve for x
    x = 1,108,239,460,857.01/1,543,603.70
  6. Step 6: Final answer
    x = 717,955.95

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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.