Home / 930,653.28-1,395,543.87-390,794.22

Finding the Fourth Proportional to 930,653.28, 1,395,543.87 and 390,794.22

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Solution

The fourth proportional to 930,653.28, 1,395,543.87 and 390,794.22 is: 586,008.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,653.28 : 1,395,543.87 = 390,794.22 : x
  2. Step 2: Convert to fraction form
    930,653.28/1,395,543.87 = 390,794.22/x
  3. Step 3: Cross multiply
    930,653.28x = 1,395,543.87 × 390,794.22
  4. Step 4: Simplify right side
    930,653.28x = 545,370,478,152.43
  5. Step 5: Solve for x
    x = 545,370,478,152.43/930,653.28
  6. Step 6: Final answer
    x = 586,008.23

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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.