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Finding the Fourth Proportional to 630,790.37, 870,360.76 and 362,466.53

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Solution

The fourth proportional to 630,790.37, 870,360.76 and 362,466.53 is: 500,129.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,790.37 : 870,360.76 = 362,466.53 : x
  2. Step 2: Convert to fraction form
    630,790.37/870,360.76 = 362,466.53/x
  3. Step 3: Cross multiply
    630,790.37x = 870,360.76 × 362,466.53
  4. Step 4: Simplify right side
    630,790.37x = 315,476,644,525.36
  5. Step 5: Solve for x
    x = 315,476,644,525.36/630,790.37
  6. Step 6: Final answer
    x = 500,129.14

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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.