Home / 778,177.41-1,074,384.63-488,186.57

Finding the Fourth Proportional to 778,177.41, 1,074,384.63 and 488,186.57

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Solution

The fourth proportional to 778,177.41, 1,074,384.63 and 488,186.57 is: 674,011.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,177.41 : 1,074,384.63 = 488,186.57 : x
  2. Step 2: Convert to fraction form
    778,177.41/1,074,384.63 = 488,186.57/x
  3. Step 3: Cross multiply
    778,177.41x = 1,074,384.63 × 488,186.57
  4. Step 4: Simplify right side
    778,177.41x = 524,500,142,008.50
  5. Step 5: Solve for x
    x = 524,500,142,008.50/778,177.41
  6. Step 6: Final answer
    x = 674,011.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.