Home / 809,801.80-1,117,526.48-470,291.92

Finding the Fourth Proportional to 809,801.80, 1,117,526.48 and 470,291.92

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Solution

The fourth proportional to 809,801.80, 1,117,526.48 and 470,291.92 is: 649,002.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,801.80 : 1,117,526.48 = 470,291.92 : x
  2. Step 2: Convert to fraction form
    809,801.80/1,117,526.48 = 470,291.92/x
  3. Step 3: Cross multiply
    809,801.80x = 1,117,526.48 × 470,291.92
  4. Step 4: Simplify right side
    809,801.80x = 525,563,668,342.41
  5. Step 5: Solve for x
    x = 525,563,668,342.41/809,801.80
  6. Step 6: Final answer
    x = 649,002.84

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1.5x scale

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.