Home / 786,711.53-1,085,630.36-442,554.28

Finding the Fourth Proportional to 786,711.53, 1,085,630.36 and 442,554.28

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Solution

The fourth proportional to 786,711.53, 1,085,630.36 and 442,554.28 is: 610,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,711.53 : 1,085,630.36 = 442,554.28 : x
  2. Step 2: Convert to fraction form
    786,711.53/1,085,630.36 = 442,554.28/x
  3. Step 3: Cross multiply
    786,711.53x = 1,085,630.36 × 442,554.28
  4. Step 4: Simplify right side
    786,711.53x = 480,450,360,708.25
  5. Step 5: Solve for x
    x = 480,450,360,708.25/786,711.53
  6. Step 6: Final answer
    x = 610,707.15

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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.