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Finding the Fourth Proportional to 710,940.40, 975,875.41 and 628,563.40

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Solution

The fourth proportional to 710,940.40, 975,875.41 and 628,563.40 is: 862,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,940.40 : 975,875.41 = 628,563.40 : x
  2. Step 2: Convert to fraction form
    710,940.40/975,875.41 = 628,563.40/x
  3. Step 3: Cross multiply
    710,940.40x = 975,875.41 × 628,563.40
  4. Step 4: Simplify right side
    710,940.40x = 613,399,565,685.99
  5. Step 5: Solve for x
    x = 613,399,565,685.99/710,940.40
  6. Step 6: Final answer
    x = 862,800.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.