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Finding the Fourth Proportional to 660,877.32, 912,024.18 and 359,090.76

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Solution

The fourth proportional to 660,877.32, 912,024.18 and 359,090.76 is: 495,552.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,877.32 : 912,024.18 = 359,090.76 : x
  2. Step 2: Convert to fraction form
    660,877.32/912,024.18 = 359,090.76/x
  3. Step 3: Cross multiply
    660,877.32x = 912,024.18 × 359,090.76
  4. Step 4: Simplify right side
    660,877.32x = 327,499,455,934.58
  5. Step 5: Solve for x
    x = 327,499,455,934.58/660,877.32
  6. Step 6: Final answer
    x = 495,552.57

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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.