Home / 877,676.40-1,316,560.12-278,684.40

Finding the Fourth Proportional to 877,676.40, 1,316,560.12 and 278,684.40

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Solution

The fourth proportional to 877,676.40, 1,316,560.12 and 278,684.40 is: 418,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,676.40 : 1,316,560.12 = 278,684.40 : x
  2. Step 2: Convert to fraction form
    877,676.40/1,316,560.12 = 278,684.40/x
  3. Step 3: Cross multiply
    877,676.40x = 1,316,560.12 × 278,684.40
  4. Step 4: Simplify right side
    877,676.40x = 366,904,767,106.13
  5. Step 5: Solve for x
    x = 366,904,767,106.13/877,676.40
  6. Step 6: Final answer
    x = 418,041.05

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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.