Home / 714,939.40-1,072,409.10-360,645.40

Finding the Fourth Proportional to 714,939.40, 1,072,409.10 and 360,645.40

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Solution

The fourth proportional to 714,939.40, 1,072,409.10 and 360,645.40 is: 540,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,939.40 : 1,072,409.10 = 360,645.40 : x
  2. Step 2: Convert to fraction form
    714,939.40/1,072,409.10 = 360,645.40/x
  3. Step 3: Cross multiply
    714,939.40x = 1,072,409.10 × 360,645.40
  4. Step 4: Simplify right side
    714,939.40x = 386,759,408,833.14
  5. Step 5: Solve for x
    x = 386,759,408,833.14/714,939.40
  6. Step 6: Final answer
    x = 540,968.10

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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.