Home / 917,977.60-1,266,907.80-555,600.88

Finding the Fourth Proportional to 917,977.60, 1,266,907.80 and 555,600.88

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Solution

The fourth proportional to 917,977.60, 1,266,907.80 and 555,600.88 is: 766,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,977.60 : 1,266,907.80 = 555,600.88 : x
  2. Step 2: Convert to fraction form
    917,977.60/1,266,907.80 = 555,600.88/x
  3. Step 3: Cross multiply
    917,977.60x = 1,266,907.80 × 555,600.88
  4. Step 4: Simplify right side
    917,977.60x = 703,895,088,558.86
  5. Step 5: Solve for x
    x = 703,895,088,558.86/917,977.60
  6. Step 6: Final answer
    x = 766,788.96

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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.