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Finding the Fourth Proportional to 710,510, 980,941.22 and 456,309.32

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Solution

The fourth proportional to 710,510, 980,941.22 and 456,309.32 is: 629,987.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,510 : 980,941.22 = 456,309.32 : x
  2. Step 2: Convert to fraction form
    710,510/980,941.22 = 456,309.32/x
  3. Step 3: Cross multiply
    710,510x = 980,941.22 × 456,309.32
  4. Step 4: Simplify right side
    710,510x = 447,612,621,058.17
  5. Step 5: Solve for x
    x = 447,612,621,058.17/710,510
  6. Step 6: Final answer
    x = 629,987.78

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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.