Home / 787,730.67-1,087,062.80-430,034.67

Finding the Fourth Proportional to 787,730.67, 1,087,062.80 and 430,034.67

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Solution

The fourth proportional to 787,730.67, 1,087,062.80 and 430,034.67 is: 593,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,730.67 : 1,087,062.80 = 430,034.67 : x
  2. Step 2: Convert to fraction form
    787,730.67/1,087,062.80 = 430,034.67/x
  3. Step 3: Cross multiply
    787,730.67x = 1,087,062.80 × 430,034.67
  4. Step 4: Simplify right side
    787,730.67x = 467,474,690,317.10
  5. Step 5: Solve for x
    x = 467,474,690,317.10/787,730.67
  6. Step 6: Final answer
    x = 593,444.83

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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.