Home / 434,701.80-651,748.95-257,117.40

Finding the Fourth Proportional to 434,701.80, 651,748.95 and 257,117.40

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Solution

The fourth proportional to 434,701.80, 651,748.95 and 257,117.40 is: 385,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,701.80 : 651,748.95 = 257,117.40 : x
  2. Step 2: Convert to fraction form
    434,701.80/651,748.95 = 257,117.40/x
  3. Step 3: Cross multiply
    434,701.80x = 651,748.95 × 257,117.40
  4. Step 4: Simplify right side
    434,701.80x = 167,575,995,476.73
  5. Step 5: Solve for x
    x = 167,575,995,476.73/434,701.80
  6. Step 6: Final answer
    x = 385,496.44

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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.