Home / 1,121,022.10-1,681,205.10-401,280.40

Finding the Fourth Proportional to 1,121,022.10, 1,681,205.10 and 401,280.40

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Solution

The fourth proportional to 1,121,022.10, 1,681,205.10 and 401,280.40 is: 601,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,022.10 : 1,681,205.10 = 401,280.40 : x
  2. Step 2: Convert to fraction form
    1,121,022.10/1,681,205.10 = 401,280.40/x
  3. Step 3: Cross multiply
    1,121,022.10x = 1,681,205.10 × 401,280.40
  4. Step 4: Simplify right side
    1,121,022.10x = 674,634,655,010.04
  5. Step 5: Solve for x
    x = 674,634,655,010.04/1,121,022.10
  6. Step 6: Final answer
    x = 601,803.17

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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.