Home / 767,803.41-1,152,411.93-388,987.67

Finding the Fourth Proportional to 767,803.41, 1,152,411.93 and 388,987.67

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Solution

The fourth proportional to 767,803.41, 1,152,411.93 and 388,987.67 is: 583,839.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,803.41 : 1,152,411.93 = 388,987.67 : x
  2. Step 2: Convert to fraction form
    767,803.41/1,152,411.93 = 388,987.67/x
  3. Step 3: Cross multiply
    767,803.41x = 1,152,411.93 × 388,987.67
  4. Step 4: Simplify right side
    767,803.41x = 448,274,025,768.84
  5. Step 5: Solve for x
    x = 448,274,025,768.84/767,803.41
  6. Step 6: Final answer
    x = 583,839.59

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Double scale
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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.