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Finding the Fourth Proportional to 660,621.10, 926,113.70 and 660,621.10

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Solution

The fourth proportional to 660,621.10, 926,113.70 and 660,621.10 is: 926,113.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,621.10 : 926,113.70 = 660,621.10 : x
  2. Step 2: Convert to fraction form
    660,621.10/926,113.70 = 660,621.10/x
  3. Step 3: Cross multiply
    660,621.10x = 926,113.70 × 660,621.10
  4. Step 4: Simplify right side
    660,621.10x = 611,810,251,219.07
  5. Step 5: Solve for x
    x = 611,810,251,219.07/660,621.10
  6. Step 6: Final answer
    x = 926,113.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.