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Finding the Fourth Proportional to 630,789.37, 870,359.39 and 362,465.53

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Solution

The fourth proportional to 630,789.37, 870,359.39 and 362,465.53 is: 500,127.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,789.37 : 870,359.39 = 362,465.53 : x
  2. Step 2: Convert to fraction form
    630,789.37/870,359.39 = 362,465.53/x
  3. Step 3: Cross multiply
    630,789.37x = 870,359.39 × 362,465.53
  4. Step 4: Simplify right side
    630,789.37x = 315,475,275,774.50
  5. Step 5: Solve for x
    x = 315,475,275,774.50/630,789.37
  6. Step 6: Final answer
    x = 500,127.76

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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.