Home / 877,756.12-1,316,499.36-278,639.44

Finding the Fourth Proportional to 877,756.12, 1,316,499.36 and 278,639.44

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Solution

The fourth proportional to 877,756.12, 1,316,499.36 and 278,639.44 is: 417,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,756.12 : 1,316,499.36 = 278,639.44 : x
  2. Step 2: Convert to fraction form
    877,756.12/1,316,499.36 = 278,639.44/x
  3. Step 3: Cross multiply
    877,756.12x = 1,316,499.36 × 278,639.44
  4. Step 4: Simplify right side
    877,756.12x = 366,828,644,430.76
  5. Step 5: Solve for x
    x = 366,828,644,430.76/877,756.12
  6. Step 6: Final answer
    x = 417,916.36

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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.