Home / 688,421.96-1,032,737.76-351,278.36

Finding the Fourth Proportional to 688,421.96, 1,032,737.76 and 351,278.36

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Solution

The fourth proportional to 688,421.96, 1,032,737.76 and 351,278.36 is: 526,971.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,421.96 : 1,032,737.76 = 351,278.36 : x
  2. Step 2: Convert to fraction form
    688,421.96/1,032,737.76 = 351,278.36/x
  3. Step 3: Cross multiply
    688,421.96x = 1,032,737.76 × 351,278.36
  4. Step 4: Simplify right side
    688,421.96x = 362,778,426,642.87
  5. Step 5: Solve for x
    x = 362,778,426,642.87/688,421.96
  6. Step 6: Final answer
    x = 526,971.03

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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.