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Finding the Fourth Proportional to 784.04, 1,169.48 and 710.24

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Solution

The fourth proportional to 784.04, 1,169.48 and 710.24 is: 1,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    784.04 : 1,169.48 = 710.24 : x
  2. Step 2: Convert to fraction form
    784.04/1,169.48 = 710.24/x
  3. Step 3: Cross multiply
    784.04x = 1,169.48 × 710.24
  4. Step 4: Simplify right side
    784.04x = 830,611.48
  5. Step 5: Solve for x
    x = 830,611.48/784.04
  6. Step 6: Final answer
    x = 1,059.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.