Home / 926,980.80-1,389,434.40-527,812.80

Finding the Fourth Proportional to 926,980.80, 1,389,434.40 and 527,812.80

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Solution

The fourth proportional to 926,980.80, 1,389,434.40 and 527,812.80 is: 791,128.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,980.80 : 1,389,434.40 = 527,812.80 : x
  2. Step 2: Convert to fraction form
    926,980.80/1,389,434.40 = 527,812.80/x
  3. Step 3: Cross multiply
    926,980.80x = 1,389,434.40 × 527,812.80
  4. Step 4: Simplify right side
    926,980.80x = 733,361,261,080.32
  5. Step 5: Solve for x
    x = 733,361,261,080.32/926,980.80
  6. Step 6: Final answer
    x = 791,128.86

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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.