Home / 877,412.54-1,316,165.56-278,420.58

Finding the Fourth Proportional to 877,412.54, 1,316,165.56 and 278,420.58

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Solution

The fourth proportional to 877,412.54, 1,316,165.56 and 278,420.58 is: 417,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,412.54 : 1,316,165.56 = 278,420.58 : x
  2. Step 2: Convert to fraction form
    877,412.54/1,316,165.56 = 278,420.58/x
  3. Step 3: Cross multiply
    877,412.54x = 1,316,165.56 × 278,420.58
  4. Step 4: Simplify right side
    877,412.54x = 366,447,577,895.17
  5. Step 5: Solve for x
    x = 366,447,577,895.17/877,412.54
  6. Step 6: Final answer
    x = 417,645.70

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1.5x scale

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.