Home / 877,101.79-1,316,177.55-378,465.79

Finding the Fourth Proportional to 877,101.79, 1,316,177.55 and 378,465.79

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Solution

The fourth proportional to 877,101.79, 1,316,177.55 and 378,465.79 is: 567,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,101.79 : 1,316,177.55 = 378,465.79 : x
  2. Step 2: Convert to fraction form
    877,101.79/1,316,177.55 = 378,465.79/x
  3. Step 3: Cross multiply
    877,101.79x = 1,316,177.55 × 378,465.79
  4. Step 4: Simplify right side
    877,101.79x = 498,128,176,241.01
  5. Step 5: Solve for x
    x = 498,128,176,241.01/877,101.79
  6. Step 6: Final answer
    x = 567,925.16

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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.