Home / 877,707.78-1,316,667.20-308,970.76

Finding the Fourth Proportional to 877,707.78, 1,316,667.20 and 308,970.76

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Solution

The fourth proportional to 877,707.78, 1,316,667.20 and 308,970.76 is: 463,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,707.78 : 1,316,667.20 = 308,970.76 : x
  2. Step 2: Convert to fraction form
    877,707.78/1,316,667.20 = 308,970.76/x
  3. Step 3: Cross multiply
    877,707.78x = 1,316,667.20 × 308,970.76
  4. Step 4: Simplify right side
    877,707.78x = 406,811,660,614.55
  5. Step 5: Solve for x
    x = 406,811,660,614.55/877,707.78
  6. Step 6: Final answer
    x = 463,493.28

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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.