Home / 974,900.78-1,345,701.29-669,986.50

Finding the Fourth Proportional to 974,900.78, 1,345,701.29 and 669,986.50

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Solution

The fourth proportional to 974,900.78, 1,345,701.29 and 669,986.50 is: 924,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    974,900.78 : 1,345,701.29 = 669,986.50 : x
  2. Step 2: Convert to fraction form
    974,900.78/1,345,701.29 = 669,986.50/x
  3. Step 3: Cross multiply
    974,900.78x = 1,345,701.29 × 669,986.50
  4. Step 4: Simplify right side
    974,900.78x = 901,601,697,332.59
  5. Step 5: Solve for x
    x = 901,601,697,332.59/974,900.78
  6. Step 6: Final answer
    x = 924,813.80

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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.