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Finding the Fourth Proportional to 938,490, 1,293,683.04 and 575,240.64

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Solution

The fourth proportional to 938,490, 1,293,683.04 and 575,240.64 is: 792,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,490 : 1,293,683.04 = 575,240.64 : x
  2. Step 2: Convert to fraction form
    938,490/1,293,683.04 = 575,240.64/x
  3. Step 3: Cross multiply
    938,490x = 1,293,683.04 × 575,240.64
  4. Step 4: Simplify right side
    938,490x = 744,179,059,886.75
  5. Step 5: Solve for x
    x = 744,179,059,886.75/938,490
  6. Step 6: Final answer
    x = 792,953.64

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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.