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Finding the Fourth Proportional to 1,292,634.02, 1,938,051.66 and 572,584.80

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Solution

The fourth proportional to 1,292,634.02, 1,938,051.66 and 572,584.80 is: 858,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,634.02 : 1,938,051.66 = 572,584.80 : x
  2. Step 2: Convert to fraction form
    1,292,634.02/1,938,051.66 = 572,584.80/x
  3. Step 3: Cross multiply
    1,292,634.02x = 1,938,051.66 × 572,584.80
  4. Step 4: Simplify right side
    1,292,634.02x = 1,109,698,922,130.77
  5. Step 5: Solve for x
    x = 1,109,698,922,130.77/1,292,634.02
  6. Step 6: Final answer
    x = 858,478.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.