Home / 740,469.12-1,021,848.12-400,936.56

Finding the Fourth Proportional to 740,469.12, 1,021,848.12 and 400,936.56

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Solution

The fourth proportional to 740,469.12, 1,021,848.12 and 400,936.56 is: 553,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,469.12 : 1,021,848.12 = 400,936.56 : x
  2. Step 2: Convert to fraction form
    740,469.12/1,021,848.12 = 400,936.56/x
  3. Step 3: Cross multiply
    740,469.12x = 1,021,848.12 × 400,936.56
  4. Step 4: Simplify right side
    740,469.12x = 409,696,270,075.27
  5. Step 5: Solve for x
    x = 409,696,270,075.27/740,469.12
  6. Step 6: Final answer
    x = 553,292.85

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1.5x scale

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.