Home / 890,338.02-1,228,639.77-508,290.18

Finding the Fourth Proportional to 890,338.02, 1,228,639.77 and 508,290.18

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Solution

The fourth proportional to 890,338.02, 1,228,639.77 and 508,290.18 is: 701,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,338.02 : 1,228,639.77 = 508,290.18 : x
  2. Step 2: Convert to fraction form
    890,338.02/1,228,639.77 = 508,290.18/x
  3. Step 3: Cross multiply
    890,338.02x = 1,228,639.77 × 508,290.18
  4. Step 4: Simplify right side
    890,338.02x = 624,505,529,848.46
  5. Step 5: Solve for x
    x = 624,505,529,848.46/890,338.02
  6. Step 6: Final answer
    x = 701,425.21

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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.