Home / 1,009,000.47-1,391,633.34-646,458.30

Finding the Fourth Proportional to 1,009,000.47, 1,391,633.34 and 646,458.30

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Solution

The fourth proportional to 1,009,000.47, 1,391,633.34 and 646,458.30 is: 891,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,000.47 : 1,391,633.34 = 646,458.30 : x
  2. Step 2: Convert to fraction form
    1,009,000.47/1,391,633.34 = 646,458.30/x
  3. Step 3: Cross multiply
    1,009,000.47x = 1,391,633.34 × 646,458.30
  4. Step 4: Simplify right side
    1,009,000.47x = 899,632,923,199.72
  5. Step 5: Solve for x
    x = 899,632,923,199.72/1,009,000.47
  6. Step 6: Final answer
    x = 891,608.03

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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.