Home / 858,112.02-1,287,582.75-353,045.70

Finding the Fourth Proportional to 858,112.02, 1,287,582.75 and 353,045.70

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Solution

The fourth proportional to 858,112.02, 1,287,582.75 and 353,045.70 is: 529,739.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,112.02 : 1,287,582.75 = 353,045.70 : x
  2. Step 2: Convert to fraction form
    858,112.02/1,287,582.75 = 353,045.70/x
  3. Step 3: Cross multiply
    858,112.02x = 1,287,582.75 × 353,045.70
  4. Step 4: Simplify right side
    858,112.02x = 454,575,553,281.68
  5. Step 5: Solve for x
    x = 454,575,553,281.68/858,112.02
  6. Step 6: Final answer
    x = 529,739.17

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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.