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Finding the Fourth Proportional to 877,903.40, 1,211,605.02 and 495,954.80

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Solution

The fourth proportional to 877,903.40, 1,211,605.02 and 495,954.80 is: 684,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,903.40 : 1,211,605.02 = 495,954.80 : x
  2. Step 2: Convert to fraction form
    877,903.40/1,211,605.02 = 495,954.80/x
  3. Step 3: Cross multiply
    877,903.40x = 1,211,605.02 × 495,954.80
  4. Step 4: Simplify right side
    877,903.40x = 600,901,325,373.10
  5. Step 5: Solve for x
    x = 600,901,325,373.10/877,903.40
  6. Step 6: Final answer
    x = 684,473.17

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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.