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Finding the Fourth Proportional to 676,283.80, 933,111.44 and 400,502.38

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Solution

The fourth proportional to 676,283.80, 933,111.44 and 400,502.38 is: 552,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,283.80 : 933,111.44 = 400,502.38 : x
  2. Step 2: Convert to fraction form
    676,283.80/933,111.44 = 400,502.38/x
  3. Step 3: Cross multiply
    676,283.80x = 933,111.44 × 400,502.38
  4. Step 4: Simplify right side
    676,283.80x = 373,713,352,525.23
  5. Step 5: Solve for x
    x = 373,713,352,525.23/676,283.80
  6. Step 6: Final answer
    x = 552,598.41

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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.