Home / 1,980,465-2,971,079.28-843,206.10

Finding the Fourth Proportional to 1,980,465, 2,971,079.28 and 843,206.10

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Solution

The fourth proportional to 1,980,465, 2,971,079.28 and 843,206.10 is: 1,264,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,465 : 2,971,079.28 = 843,206.10 : x
  2. Step 2: Convert to fraction form
    1,980,465/2,971,079.28 = 843,206.10/x
  3. Step 3: Cross multiply
    1,980,465x = 2,971,079.28 × 843,206.10
  4. Step 4: Simplify right side
    1,980,465x = 2,505,232,172,479.61
  5. Step 5: Solve for x
    x = 2,505,232,172,479.61/1,980,465
  6. Step 6: Final answer
    x = 1,264,971.70

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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.