Home / 809,803.30-1,117,528.54-470,293.42

Finding the Fourth Proportional to 809,803.30, 1,117,528.54 and 470,293.42

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Solution

The fourth proportional to 809,803.30, 1,117,528.54 and 470,293.42 is: 649,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,803.30 : 1,117,528.54 = 470,293.42 : x
  2. Step 2: Convert to fraction form
    809,803.30/1,117,528.54 = 470,293.42/x
  3. Step 3: Cross multiply
    809,803.30x = 1,117,528.54 × 470,293.42
  4. Step 4: Simplify right side
    809,803.30x = 525,566,319,024.21
  5. Step 5: Solve for x
    x = 525,566,319,024.21/809,803.30
  6. Step 6: Final answer
    x = 649,004.91

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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.