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Finding the Fourth Proportional to 709,411.80, 1,064,117.70 and 700,080.60

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Solution

The fourth proportional to 709,411.80, 1,064,117.70 and 700,080.60 is: 1,050,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,411.80 : 1,064,117.70 = 700,080.60 : x
  2. Step 2: Convert to fraction form
    709,411.80/1,064,117.70 = 700,080.60/x
  3. Step 3: Cross multiply
    709,411.80x = 1,064,117.70 × 700,080.60
  4. Step 4: Simplify right side
    709,411.80x = 744,968,157,886.62
  5. Step 5: Solve for x
    x = 744,968,157,886.62/709,411.80
  6. Step 6: Final answer
    x = 1,050,120.90

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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.