Home / 1,075,128.72-1,612,926.36-327,155.28

Finding the Fourth Proportional to 1,075,128.72, 1,612,926.36 and 327,155.28

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Solution

The fourth proportional to 1,075,128.72, 1,612,926.36 and 327,155.28 is: 490,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,128.72 : 1,612,926.36 = 327,155.28 : x
  2. Step 2: Convert to fraction form
    1,075,128.72/1,612,926.36 = 327,155.28/x
  3. Step 3: Cross multiply
    1,075,128.72x = 1,612,926.36 × 327,155.28
  4. Step 4: Simplify right side
    1,075,128.72x = 527,677,374,925.18
  5. Step 5: Solve for x
    x = 527,677,374,925.18/1,075,128.72
  6. Step 6: Final answer
    x = 490,803.91

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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.