Home / 1,139,419.40-1,708,059.90-429,924.20

Finding the Fourth Proportional to 1,139,419.40, 1,708,059.90 and 429,924.20

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Solution

The fourth proportional to 1,139,419.40, 1,708,059.90 and 429,924.20 is: 644,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,419.40 : 1,708,059.90 = 429,924.20 : x
  2. Step 2: Convert to fraction form
    1,139,419.40/1,708,059.90 = 429,924.20/x
  3. Step 3: Cross multiply
    1,139,419.40x = 1,708,059.90 × 429,924.20
  4. Step 4: Simplify right side
    1,139,419.40x = 734,336,286,059.58
  5. Step 5: Solve for x
    x = 734,336,286,059.58/1,139,419.40
  6. Step 6: Final answer
    x = 644,482.87

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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.