Home / 553,748.12-764,188.27-312,017.39

Finding the Fourth Proportional to 553,748.12, 764,188.27 and 312,017.39

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Solution

The fourth proportional to 553,748.12, 764,188.27 and 312,017.39 is: 430,592.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,748.12 : 764,188.27 = 312,017.39 : x
  2. Step 2: Convert to fraction form
    553,748.12/764,188.27 = 312,017.39/x
  3. Step 3: Cross multiply
    553,748.12x = 764,188.27 × 312,017.39
  4. Step 4: Simplify right side
    553,748.12x = 238,440,025,653.07
  5. Step 5: Solve for x
    x = 238,440,025,653.07/553,748.12
  6. Step 6: Final answer
    x = 430,592.93

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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.