Home / 1,415,528.28-2,123,133.46-391,004.19

Finding the Fourth Proportional to 1,415,528.28, 2,123,133.46 and 391,004.19

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Solution

The fourth proportional to 1,415,528.28, 2,123,133.46 and 391,004.19 is: 586,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,528.28 : 2,123,133.46 = 391,004.19 : x
  2. Step 2: Convert to fraction form
    1,415,528.28/2,123,133.46 = 391,004.19/x
  3. Step 3: Cross multiply
    1,415,528.28x = 2,123,133.46 × 391,004.19
  4. Step 4: Simplify right side
    1,415,528.28x = 830,154,077,811.69
  5. Step 5: Solve for x
    x = 830,154,077,811.69/1,415,528.28
  6. Step 6: Final answer
    x = 586,462.38

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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.