Home / 429,931.68-644,899.02-130,414.84

Finding the Fourth Proportional to 429,931.68, 644,899.02 and 130,414.84

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Solution

The fourth proportional to 429,931.68, 644,899.02 and 130,414.84 is: 195,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,931.68 : 644,899.02 = 130,414.84 : x
  2. Step 2: Convert to fraction form
    429,931.68/644,899.02 = 130,414.84/x
  3. Step 3: Cross multiply
    429,931.68x = 644,899.02 × 130,414.84
  4. Step 4: Simplify right side
    429,931.68x = 84,104,402,509.46
  5. Step 5: Solve for x
    x = 84,104,402,509.46/429,931.68
  6. Step 6: Final answer
    x = 195,622.72

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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.