Home / 1,077,537.60-1,486,900.80-624,780

Finding the Fourth Proportional to 1,077,537.60, 1,486,900.80 and 624,780

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Solution

The fourth proportional to 1,077,537.60, 1,486,900.80 and 624,780 is: 862,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,537.60 : 1,486,900.80 = 624,780 : x
  2. Step 2: Convert to fraction form
    1,077,537.60/1,486,900.80 = 624,780/x
  3. Step 3: Cross multiply
    1,077,537.60x = 1,486,900.80 × 624,780
  4. Step 4: Simplify right side
    1,077,537.60x = 928,985,881,824
  5. Step 5: Solve for x
    x = 928,985,881,824/1,077,537.60
  6. Step 6: Final answer
    x = 862,137.79

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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.