Home / 904,989.07-1,355,416.89-432,006.58

Finding the Fourth Proportional to 904,989.07, 1,355,416.89 and 432,006.58

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Solution

The fourth proportional to 904,989.07, 1,355,416.89 and 432,006.58 is: 647,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,989.07 : 1,355,416.89 = 432,006.58 : x
  2. Step 2: Convert to fraction form
    904,989.07/1,355,416.89 = 432,006.58/x
  3. Step 3: Cross multiply
    904,989.07x = 1,355,416.89 × 432,006.58
  4. Step 4: Simplify right side
    904,989.07x = 585,549,015,123.14
  5. Step 5: Solve for x
    x = 585,549,015,123.14/904,989.07
  6. Step 6: Final answer
    x = 647,023.30

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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.