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Finding the Fourth Proportional to 630,527.64, 870,147.27 and 358,634.67

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Solution

The fourth proportional to 630,527.64, 870,147.27 and 358,634.67 is: 494,926.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,527.64 : 870,147.27 = 358,634.67 : x
  2. Step 2: Convert to fraction form
    630,527.64/870,147.27 = 358,634.67/x
  3. Step 3: Cross multiply
    630,527.64x = 870,147.27 × 358,634.67
  4. Step 4: Simplify right side
    630,527.64x = 312,064,979,027.85
  5. Step 5: Solve for x
    x = 312,064,979,027.85/630,527.64
  6. Step 6: Final answer
    x = 494,926.72

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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.