Home / 912,668.07-1,369,030.05-313,620.69

Finding the Fourth Proportional to 912,668.07, 1,369,030.05 and 313,620.69

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Solution

The fourth proportional to 912,668.07, 1,369,030.05 and 313,620.69 is: 470,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,668.07 : 1,369,030.05 = 313,620.69 : x
  2. Step 2: Convert to fraction form
    912,668.07/1,369,030.05 = 313,620.69/x
  3. Step 3: Cross multiply
    912,668.07x = 1,369,030.05 × 313,620.69
  4. Step 4: Simplify right side
    912,668.07x = 429,356,148,911.74
  5. Step 5: Solve for x
    x = 429,356,148,911.74/912,668.07
  6. Step 6: Final answer
    x = 470,440.64

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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.