Home / 878,904-1,212,741.72-552,166.20

Finding the Fourth Proportional to 878,904, 1,212,741.72 and 552,166.20

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Solution

The fourth proportional to 878,904, 1,212,741.72 and 552,166.20 is: 761,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,904 : 1,212,741.72 = 552,166.20 : x
  2. Step 2: Convert to fraction form
    878,904/1,212,741.72 = 552,166.20/x
  3. Step 3: Cross multiply
    878,904x = 1,212,741.72 × 552,166.20
  4. Step 4: Simplify right side
    878,904x = 669,634,987,113.86
  5. Step 5: Solve for x
    x = 669,634,987,113.86/878,904
  6. Step 6: Final answer
    x = 761,897.76

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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.