Home / 956,567.78-1,320,036.45-520,975.40

Finding the Fourth Proportional to 956,567.78, 1,320,036.45 and 520,975.40

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Solution

The fourth proportional to 956,567.78, 1,320,036.45 and 520,975.40 is: 718,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,567.78 : 1,320,036.45 = 520,975.40 : x
  2. Step 2: Convert to fraction form
    956,567.78/1,320,036.45 = 520,975.40/x
  3. Step 3: Cross multiply
    956,567.78x = 1,320,036.45 × 520,975.40
  4. Step 4: Simplify right side
    956,567.78x = 687,706,508,999.49
  5. Step 5: Solve for x
    x = 687,706,508,999.49/956,567.78
  6. Step 6: Final answer
    x = 718,931.29

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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.