Home / 751,381.81-1,125,203.13-525,685.57

Finding the Fourth Proportional to 751,381.81, 1,125,203.13 and 525,685.57

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Solution

The fourth proportional to 751,381.81, 1,125,203.13 and 525,685.57 is: 787,220.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,381.81 : 1,125,203.13 = 525,685.57 : x
  2. Step 2: Convert to fraction form
    751,381.81/1,125,203.13 = 525,685.57/x
  3. Step 3: Cross multiply
    751,381.81x = 1,125,203.13 × 525,685.57
  4. Step 4: Simplify right side
    751,381.81x = 591,503,045,946.83
  5. Step 5: Solve for x
    x = 591,503,045,946.83/751,381.81
  6. Step 6: Final answer
    x = 787,220.35

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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.