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Finding the Fourth Proportional to 671,570.90, 1,007,534.55 and 292,328.90

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Solution

The fourth proportional to 671,570.90, 1,007,534.55 and 292,328.90 is: 438,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,570.90 : 1,007,534.55 = 292,328.90 : x
  2. Step 2: Convert to fraction form
    671,570.90/1,007,534.55 = 292,328.90/x
  3. Step 3: Cross multiply
    671,570.90x = 1,007,534.55 × 292,328.90
  4. Step 4: Simplify right side
    671,570.90x = 294,531,466,713.50
  5. Step 5: Solve for x
    x = 294,531,466,713.50/671,570.90
  6. Step 6: Final answer
    x = 438,570.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.