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Finding the Fourth Proportional to 889,634.52, 1,227,783.69 and 507,718.71

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Solution

The fourth proportional to 889,634.52, 1,227,783.69 and 507,718.71 is: 700,702.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,634.52 : 1,227,783.69 = 507,718.71 : x
  2. Step 2: Convert to fraction form
    889,634.52/1,227,783.69 = 507,718.71/x
  3. Step 3: Cross multiply
    889,634.52x = 1,227,783.69 × 507,718.71
  4. Step 4: Simplify right side
    889,634.52x = 623,368,751,245.84
  5. Step 5: Solve for x
    x = 623,368,751,245.84/889,634.52
  6. Step 6: Final answer
    x = 700,702.07

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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.