Home / 879,423.80-1,319,135.70-524,838.20

Finding the Fourth Proportional to 879,423.80, 1,319,135.70 and 524,838.20

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Solution

The fourth proportional to 879,423.80, 1,319,135.70 and 524,838.20 is: 787,257.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,423.80 : 1,319,135.70 = 524,838.20 : x
  2. Step 2: Convert to fraction form
    879,423.80/1,319,135.70 = 524,838.20/x
  3. Step 3: Cross multiply
    879,423.80x = 1,319,135.70 × 524,838.20
  4. Step 4: Simplify right side
    879,423.80x = 692,332,806,343.74
  5. Step 5: Solve for x
    x = 692,332,806,343.74/879,423.80
  6. Step 6: Final answer
    x = 787,257.30

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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.