Home / 879,626.40-1,319,266.80-288,650.40

Finding the Fourth Proportional to 879,626.40, 1,319,266.80 and 288,650.40

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Solution

The fourth proportional to 879,626.40, 1,319,266.80 and 288,650.40 is: 432,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,626.40 : 1,319,266.80 = 288,650.40 : x
  2. Step 2: Convert to fraction form
    879,626.40/1,319,266.80 = 288,650.40/x
  3. Step 3: Cross multiply
    879,626.40x = 1,319,266.80 × 288,650.40
  4. Step 4: Simplify right side
    879,626.40x = 380,806,889,526.72
  5. Step 5: Solve for x
    x = 380,806,889,526.72/879,626.40
  6. Step 6: Final answer
    x = 432,918.90

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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.