Home / 877,316.60-1,316,021.64-278,325.64

Finding the Fourth Proportional to 877,316.60, 1,316,021.64 and 278,325.64

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Solution

The fourth proportional to 877,316.60, 1,316,021.64 and 278,325.64 is: 417,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,316.60 : 1,316,021.64 = 278,325.64 : x
  2. Step 2: Convert to fraction form
    877,316.60/1,316,021.64 = 278,325.64/x
  3. Step 3: Cross multiply
    877,316.60x = 1,316,021.64 × 278,325.64
  4. Step 4: Simplify right side
    877,316.60x = 366,282,565,206.85
  5. Step 5: Solve for x
    x = 366,282,565,206.85/877,316.60
  6. Step 6: Final answer
    x = 417,503.29

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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.