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Finding the Fourth Proportional to 706,754.08, 975,100.44 and 400,806.40

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Solution

The fourth proportional to 706,754.08, 975,100.44 and 400,806.40 is: 552,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,754.08 : 975,100.44 = 400,806.40 : x
  2. Step 2: Convert to fraction form
    706,754.08/975,100.44 = 400,806.40/x
  3. Step 3: Cross multiply
    706,754.08x = 975,100.44 × 400,806.40
  4. Step 4: Simplify right side
    706,754.08x = 390,826,496,994.82
  5. Step 5: Solve for x
    x = 390,826,496,994.82/706,754.08
  6. Step 6: Final answer
    x = 552,987.96

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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.