Home / 904,728.76-1,355,026.02-431,746.27

Finding the Fourth Proportional to 904,728.76, 1,355,026.02 and 431,746.27

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Solution

The fourth proportional to 904,728.76, 1,355,026.02 and 431,746.27 is: 646,632.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    904,728.76 : 1,355,026.02 = 431,746.27 : x
  2. Step 2: Convert to fraction form
    904,728.76/1,355,026.02 = 431,746.27/x
  3. Step 3: Cross multiply
    904,728.76x = 1,355,026.02 × 431,746.27
  4. Step 4: Simplify right side
    904,728.76x = 585,027,429,887.95
  5. Step 5: Solve for x
    x = 585,027,429,887.95/904,728.76
  6. Step 6: Final answer
    x = 646,632.95

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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.