Home / 696,430.40-1,044,940.85-380,518.25

Finding the Fourth Proportional to 696,430.40, 1,044,940.85 and 380,518.25

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Solution

The fourth proportional to 696,430.40, 1,044,940.85 and 380,518.25 is: 570,938.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,430.40 : 1,044,940.85 = 380,518.25 : x
  2. Step 2: Convert to fraction form
    696,430.40/1,044,940.85 = 380,518.25/x
  3. Step 3: Cross multiply
    696,430.40x = 1,044,940.85 × 380,518.25
  4. Step 4: Simplify right side
    696,430.40x = 397,619,065,732.22
  5. Step 5: Solve for x
    x = 397,619,065,732.22/696,430.40
  6. Step 6: Final answer
    x = 570,938.70

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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.