Home / 768,726.32-1,152,089.29-312,786.20

Finding the Fourth Proportional to 768,726.32, 1,152,089.29 and 312,786.20

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Solution

The fourth proportional to 768,726.32, 1,152,089.29 and 312,786.20 is: 468,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,726.32 : 1,152,089.29 = 312,786.20 : x
  2. Step 2: Convert to fraction form
    768,726.32/1,152,089.29 = 312,786.20/x
  3. Step 3: Cross multiply
    768,726.32x = 1,152,089.29 × 312,786.20
  4. Step 4: Simplify right side
    768,726.32x = 360,357,634,351.00
  5. Step 5: Solve for x
    x = 360,357,634,351.00/768,726.32
  6. Step 6: Final answer
    x = 468,772.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.