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Finding the Fourth Proportional to 703,225.55, 970,455.94 and 380,935.67

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Solution

The fourth proportional to 703,225.55, 970,455.94 and 380,935.67 is: 525,693.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,225.55 : 970,455.94 = 380,935.67 : x
  2. Step 2: Convert to fraction form
    703,225.55/970,455.94 = 380,935.67/x
  3. Step 3: Cross multiply
    703,225.55x = 970,455.94 × 380,935.67
  4. Step 4: Simplify right side
    703,225.55x = 369,681,277,904.76
  5. Step 5: Solve for x
    x = 369,681,277,904.76/703,225.55
  6. Step 6: Final answer
    x = 525,693.75

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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.