Home / 710,741.40-1,065,723.30-289,541.40

Finding the Fourth Proportional to 710,741.40, 1,065,723.30 and 289,541.40

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Solution

The fourth proportional to 710,741.40, 1,065,723.30 and 289,541.40 is: 434,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,741.40 : 1,065,723.30 = 289,541.40 : x
  2. Step 2: Convert to fraction form
    710,741.40/1,065,723.30 = 289,541.40/x
  3. Step 3: Cross multiply
    710,741.40x = 1,065,723.30 × 289,541.40
  4. Step 4: Simplify right side
    710,741.40x = 308,571,016,294.62
  5. Step 5: Solve for x
    x = 308,571,016,294.62/710,741.40
  6. Step 6: Final answer
    x = 434,153.71

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1.5x scale

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.