Home / 879,291.40-1,319,282.70-346,721.80

Finding the Fourth Proportional to 879,291.40, 1,319,282.70 and 346,721.80

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Solution

The fourth proportional to 879,291.40, 1,319,282.70 and 346,721.80 is: 520,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,291.40 : 1,319,282.70 = 346,721.80 : x
  2. Step 2: Convert to fraction form
    879,291.40/1,319,282.70 = 346,721.80/x
  3. Step 3: Cross multiply
    879,291.40x = 1,319,282.70 × 346,721.80
  4. Step 4: Simplify right side
    879,291.40x = 457,424,072,452.86
  5. Step 5: Solve for x
    x = 457,424,072,452.86/879,291.40
  6. Step 6: Final answer
    x = 520,218.98

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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.