Home / 914,811-1,262,420.34-506,909.28

Finding the Fourth Proportional to 914,811, 1,262,420.34 and 506,909.28

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Solution

The fourth proportional to 914,811, 1,262,420.34 and 506,909.28 is: 699,524.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,811 : 1,262,420.34 = 506,909.28 : x
  2. Step 2: Convert to fraction form
    914,811/1,262,420.34 = 506,909.28/x
  3. Step 3: Cross multiply
    914,811x = 1,262,420.34 × 506,909.28
  4. Step 4: Simplify right side
    914,811x = 639,932,585,606.76
  5. Step 5: Solve for x
    x = 639,932,585,606.76/914,811
  6. Step 6: Final answer
    x = 699,524.37

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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.