Home / 912,906.59-1,369,484.48-380,303.06

Finding the Fourth Proportional to 912,906.59, 1,369,484.48 and 380,303.06

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Solution

The fourth proportional to 912,906.59, 1,369,484.48 and 380,303.06 is: 570,506.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,906.59 : 1,369,484.48 = 380,303.06 : x
  2. Step 2: Convert to fraction form
    912,906.59/1,369,484.48 = 380,303.06/x
  3. Step 3: Cross multiply
    912,906.59x = 1,369,484.48 × 380,303.06
  4. Step 4: Simplify right side
    912,906.59x = 520,819,132,469.84
  5. Step 5: Solve for x
    x = 520,819,132,469.84/912,906.59
  6. Step 6: Final answer
    x = 570,506.49

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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.