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Finding the Fourth Proportional to 703,065.81, 970,230.51 and 380,775.90

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Solution

The fourth proportional to 703,065.81, 970,230.51 and 380,775.90 is: 525,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,065.81 : 970,230.51 = 380,775.90 : x
  2. Step 2: Convert to fraction form
    703,065.81/970,230.51 = 380,775.90/x
  3. Step 3: Cross multiply
    703,065.81x = 970,230.51 × 380,775.90
  4. Step 4: Simplify right side
    703,065.81x = 369,440,395,652.71
  5. Step 5: Solve for x
    x = 369,440,395,652.71/703,065.81
  6. Step 6: Final answer
    x = 525,470.58

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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.