Home / 1,388,421.52-2,082,678.08-477,594.84

Finding the Fourth Proportional to 1,388,421.52, 2,082,678.08 and 477,594.84

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Solution

The fourth proportional to 1,388,421.52, 2,082,678.08 and 477,594.84 is: 716,408.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,421.52 : 2,082,678.08 = 477,594.84 : x
  2. Step 2: Convert to fraction form
    1,388,421.52/2,082,678.08 = 477,594.84/x
  3. Step 3: Cross multiply
    1,388,421.52x = 2,082,678.08 × 477,594.84
  4. Step 4: Simplify right side
    1,388,421.52x = 994,676,304,389.11
  5. Step 5: Solve for x
    x = 994,676,304,389.11/1,388,421.52
  6. Step 6: Final answer
    x = 716,408.01

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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.