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Finding the Fourth Proportional to 661,054.48, 912,254.88 and 359,248.48

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Solution

The fourth proportional to 661,054.48, 912,254.88 and 359,248.48 is: 495,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,054.48 : 912,254.88 = 359,248.48 : x
  2. Step 2: Convert to fraction form
    661,054.48/912,254.88 = 359,248.48/x
  3. Step 3: Cross multiply
    661,054.48x = 912,254.88 × 359,248.48
  4. Step 4: Simplify right side
    661,054.48x = 327,726,179,012.58
  5. Step 5: Solve for x
    x = 327,726,179,012.58/661,054.48
  6. Step 6: Final answer
    x = 495,762.74

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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.