Home / 687,835.69-1,031,210.91-434,582.37

Finding the Fourth Proportional to 687,835.69, 1,031,210.91 and 434,582.37

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Solution

The fourth proportional to 687,835.69, 1,031,210.91 and 434,582.37 is: 651,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,835.69 : 1,031,210.91 = 434,582.37 : x
  2. Step 2: Convert to fraction form
    687,835.69/1,031,210.91 = 434,582.37/x
  3. Step 3: Cross multiply
    687,835.69x = 1,031,210.91 × 434,582.37
  4. Step 4: Simplify right side
    687,835.69x = 448,146,081,998.97
  5. Step 5: Solve for x
    x = 448,146,081,998.97/687,835.69
  6. Step 6: Final answer
    x = 651,530.72

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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.