Home / 1,230,431.58-1,697,999.76-686,557.50

Finding the Fourth Proportional to 1,230,431.58, 1,697,999.76 and 686,557.50

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Solution

The fourth proportional to 1,230,431.58, 1,697,999.76 and 686,557.50 is: 947,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,431.58 : 1,697,999.76 = 686,557.50 : x
  2. Step 2: Convert to fraction form
    1,230,431.58/1,697,999.76 = 686,557.50/x
  3. Step 3: Cross multiply
    1,230,431.58x = 1,697,999.76 × 686,557.50
  4. Step 4: Simplify right side
    1,230,431.58x = 1,165,774,470,226.20
  5. Step 5: Solve for x
    x = 1,165,774,470,226.20/1,230,431.58
  6. Step 6: Final answer
    x = 947,451.68

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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.