Home / 1,405,417.20-1,939,480.10-760,835.86

Finding the Fourth Proportional to 1,405,417.20, 1,939,480.10 and 760,835.86

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Solution

The fourth proportional to 1,405,417.20, 1,939,480.10 and 760,835.86 is: 1,049,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,417.20 : 1,939,480.10 = 760,835.86 : x
  2. Step 2: Convert to fraction form
    1,405,417.20/1,939,480.10 = 760,835.86/x
  3. Step 3: Cross multiply
    1,405,417.20x = 1,939,480.10 × 760,835.86
  4. Step 4: Simplify right side
    1,405,417.20x = 1,475,626,009,836.39
  5. Step 5: Solve for x
    x = 1,475,626,009,836.39/1,405,417.20
  6. Step 6: Final answer
    x = 1,049,955.85

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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.