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Finding the Fourth Proportional to 671,061.64, 926,058 and 380,726.92

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Solution

The fourth proportional to 671,061.64, 926,058 and 380,726.92 is: 525,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,061.64 : 926,058 = 380,726.92 : x
  2. Step 2: Convert to fraction form
    671,061.64/926,058 = 380,726.92/x
  3. Step 3: Cross multiply
    671,061.64x = 926,058 × 380,726.92
  4. Step 4: Simplify right side
    671,061.64x = 352,575,210,081.36
  5. Step 5: Solve for x
    x = 352,575,210,081.36/671,061.64
  6. Step 6: Final answer
    x = 525,399.14

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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.