Home / 877,566.73-1,316,835.83-428,291.32

Finding the Fourth Proportional to 877,566.73, 1,316,835.83 and 428,291.32

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Solution

The fourth proportional to 877,566.73, 1,316,835.83 and 428,291.32 is: 642,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,566.73 : 1,316,835.83 = 428,291.32 : x
  2. Step 2: Convert to fraction form
    877,566.73/1,316,835.83 = 428,291.32/x
  3. Step 3: Cross multiply
    877,566.73x = 1,316,835.83 × 428,291.32
  4. Step 4: Simplify right side
    877,566.73x = 563,989,358,610.72
  5. Step 5: Solve for x
    x = 563,989,358,610.72/877,566.73
  6. Step 6: Final answer
    x = 642,674.04

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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.