Home / 912,906.68-1,369,484.63-380,303.15

Finding the Fourth Proportional to 912,906.68, 1,369,484.63 and 380,303.15

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Solution

The fourth proportional to 912,906.68, 1,369,484.63 and 380,303.15 is: 570,506.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,906.68 : 1,369,484.63 = 380,303.15 : x
  2. Step 2: Convert to fraction form
    912,906.68/1,369,484.63 = 380,303.15/x
  3. Step 3: Cross multiply
    912,906.68x = 1,369,484.63 × 380,303.15
  4. Step 4: Simplify right side
    912,906.68x = 520,819,319,046.13
  5. Step 5: Solve for x
    x = 520,819,319,046.13/912,906.68
  6. Step 6: Final answer
    x = 570,506.64

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Double scale
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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.