Home / 1,008,012.30-1,391,056.35-555,303.30

Finding the Fourth Proportional to 1,008,012.30, 1,391,056.35 and 555,303.30

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Solution

The fourth proportional to 1,008,012.30, 1,391,056.35 and 555,303.30 is: 766,318.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,012.30 : 1,391,056.35 = 555,303.30 : x
  2. Step 2: Convert to fraction form
    1,008,012.30/1,391,056.35 = 555,303.30/x
  3. Step 3: Cross multiply
    1,008,012.30x = 1,391,056.35 × 555,303.30
  4. Step 4: Simplify right side
    1,008,012.30x = 772,458,181,640.96
  5. Step 5: Solve for x
    x = 772,458,181,640.96/1,008,012.30
  6. Step 6: Final answer
    x = 766,318.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.