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Finding the Fourth Proportional to 877,902.53, 1,211,603.81 and 495,953.91

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Solution

The fourth proportional to 877,902.53, 1,211,603.81 and 495,953.91 is: 684,471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,902.53 : 1,211,603.81 = 495,953.91 : x
  2. Step 2: Convert to fraction form
    877,902.53/1,211,603.81 = 495,953.91/x
  3. Step 3: Cross multiply
    877,902.53x = 1,211,603.81 × 495,953.91
  4. Step 4: Simplify right side
    877,902.53x = 600,899,644,460.63
  5. Step 5: Solve for x
    x = 600,899,644,460.63/877,902.53
  6. Step 6: Final answer
    x = 684,471.94

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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.