Home / 912,823.80-1,368,944.10-380,216.40

Finding the Fourth Proportional to 912,823.80, 1,368,944.10 and 380,216.40

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Solution

The fourth proportional to 912,823.80, 1,368,944.10 and 380,216.40 is: 570,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,823.80 : 1,368,944.10 = 380,216.40 : x
  2. Step 2: Convert to fraction form
    912,823.80/1,368,944.10 = 380,216.40/x
  3. Step 3: Cross multiply
    912,823.80x = 1,368,944.10 × 380,216.40
  4. Step 4: Simplify right side
    912,823.80x = 520,494,997,503.24
  5. Step 5: Solve for x
    x = 520,494,997,503.24/912,823.80
  6. Step 6: Final answer
    x = 570,203.14

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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.