Home / 879,668.10-1,317,946.95-780,135.30

Finding the Fourth Proportional to 879,668.10, 1,317,946.95 and 780,135.30

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Solution

The fourth proportional to 879,668.10, 1,317,946.95 and 780,135.30 is: 1,168,823.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,668.10 : 1,317,946.95 = 780,135.30 : x
  2. Step 2: Convert to fraction form
    879,668.10/1,317,946.95 = 780,135.30/x
  3. Step 3: Cross multiply
    879,668.10x = 1,317,946.95 × 780,135.30
  4. Step 4: Simplify right side
    879,668.10x = 1,028,176,939,222.34
  5. Step 5: Solve for x
    x = 1,028,176,939,222.34/879,668.10
  6. Step 6: Final answer
    x = 1,168,823.72

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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.