Home / 696,430.78-1,044,941.42-380,518.63

Finding the Fourth Proportional to 696,430.78, 1,044,941.42 and 380,518.63

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Solution

The fourth proportional to 696,430.78, 1,044,941.42 and 380,518.63 is: 570,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,430.78 : 1,044,941.42 = 380,518.63 : x
  2. Step 2: Convert to fraction form
    696,430.78/1,044,941.42 = 380,518.63/x
  3. Step 3: Cross multiply
    696,430.78x = 1,044,941.42 × 380,518.63
  4. Step 4: Simplify right side
    696,430.78x = 397,619,673,053.71
  5. Step 5: Solve for x
    x = 397,619,673,053.71/696,430.78
  6. Step 6: Final answer
    x = 570,939.26

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1.5x scale

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.