Home / 1,210,668.83-1,668,931.33-775,023.90

Finding the Fourth Proportional to 1,210,668.83, 1,668,931.33 and 775,023.90

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Solution

The fourth proportional to 1,210,668.83, 1,668,931.33 and 775,023.90 is: 1,068,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,668.83 : 1,668,931.33 = 775,023.90 : x
  2. Step 2: Convert to fraction form
    1,210,668.83/1,668,931.33 = 775,023.90/x
  3. Step 3: Cross multiply
    1,210,668.83x = 1,668,931.33 × 775,023.90
  4. Step 4: Simplify right side
    1,210,668.83x = 1,293,461,668,208.79
  5. Step 5: Solve for x
    x = 1,293,461,668,208.79/1,210,668.83
  6. Step 6: Final answer
    x = 1,068,386.03

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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.