Home / 454,075.20-681,112.80-432,302.40

Finding the Fourth Proportional to 454,075.20, 681,112.80 and 432,302.40

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Solution

The fourth proportional to 454,075.20, 681,112.80 and 432,302.40 is: 648,453.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,075.20 : 681,112.80 = 432,302.40 : x
  2. Step 2: Convert to fraction form
    454,075.20/681,112.80 = 432,302.40/x
  3. Step 3: Cross multiply
    454,075.20x = 681,112.80 × 432,302.40
  4. Step 4: Simplify right side
    454,075.20x = 294,446,698,110.72
  5. Step 5: Solve for x
    x = 294,446,698,110.72/454,075.20
  6. Step 6: Final answer
    x = 648,453.60

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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.