Home / 761,221.19-1,050,485.20-417,070.15

Finding the Fourth Proportional to 761,221.19, 1,050,485.20 and 417,070.15

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Solution

The fourth proportional to 761,221.19, 1,050,485.20 and 417,070.15 is: 575,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,221.19 : 1,050,485.20 = 417,070.15 : x
  2. Step 2: Convert to fraction form
    761,221.19/1,050,485.20 = 417,070.15/x
  3. Step 3: Cross multiply
    761,221.19x = 1,050,485.20 × 417,070.15
  4. Step 4: Simplify right side
    761,221.19x = 438,126,019,936.78
  5. Step 5: Solve for x
    x = 438,126,019,936.78/761,221.19
  6. Step 6: Final answer
    x = 575,556.78

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Double scale
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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.