Home / 884,017.80-1,325,445.84-428,488.50

Finding the Fourth Proportional to 884,017.80, 1,325,445.84 and 428,488.50

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Solution

The fourth proportional to 884,017.80, 1,325,445.84 and 428,488.50 is: 642,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,017.80 : 1,325,445.84 = 428,488.50 : x
  2. Step 2: Convert to fraction form
    884,017.80/1,325,445.84 = 428,488.50/x
  3. Step 3: Cross multiply
    884,017.80x = 1,325,445.84 × 428,488.50
  4. Step 4: Simplify right side
    884,017.80x = 567,938,299,812.84
  5. Step 5: Solve for x
    x = 567,938,299,812.84/884,017.80
  6. Step 6: Final answer
    x = 642,451.20

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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.