Home / 629,983.02-869,390.91-358,008.06

Finding the Fourth Proportional to 629,983.02, 869,390.91 and 358,008.06

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Solution

The fourth proportional to 629,983.02, 869,390.91 and 358,008.06 is: 494,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,983.02 : 869,390.91 = 358,008.06 : x
  2. Step 2: Convert to fraction form
    629,983.02/869,390.91 = 358,008.06/x
  3. Step 3: Cross multiply
    629,983.02x = 869,390.91 × 358,008.06
  4. Step 4: Simplify right side
    629,983.02x = 311,248,953,070.74
  5. Step 5: Solve for x
    x = 311,248,953,070.74/629,983.02
  6. Step 6: Final answer
    x = 494,059.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.