Home / 710,259.40-1,065,389.10-289,318.60

Finding the Fourth Proportional to 710,259.40, 1,065,389.10 and 289,318.60

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Solution

The fourth proportional to 710,259.40, 1,065,389.10 and 289,318.60 is: 433,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,259.40 : 1,065,389.10 = 289,318.60 : x
  2. Step 2: Convert to fraction form
    710,259.40/1,065,389.10 = 289,318.60/x
  3. Step 3: Cross multiply
    710,259.40x = 1,065,389.10 × 289,318.60
  4. Step 4: Simplify right side
    710,259.40x = 308,236,882,867.26
  5. Step 5: Solve for x
    x = 308,236,882,867.26/710,259.40
  6. Step 6: Final answer
    x = 433,977.90

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Similar ratio
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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.