Home / 890,968.80-1,228,347.46-707,815.08

Finding the Fourth Proportional to 890,968.80, 1,228,347.46 and 707,815.08

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Solution

The fourth proportional to 890,968.80, 1,228,347.46 and 707,815.08 is: 975,839.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,968.80 : 1,228,347.46 = 707,815.08 : x
  2. Step 2: Convert to fraction form
    890,968.80/1,228,347.46 = 707,815.08/x
  3. Step 3: Cross multiply
    890,968.80x = 1,228,347.46 × 707,815.08
  4. Step 4: Simplify right side
    890,968.80x = 869,442,855,667.70
  5. Step 5: Solve for x
    x = 869,442,855,667.70/890,968.80
  6. Step 6: Final answer
    x = 975,839.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.