Home / 1,230,644.42-1,698,374.54-686,886.29

Finding the Fourth Proportional to 1,230,644.42, 1,698,374.54 and 686,886.29

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Solution

The fourth proportional to 1,230,644.42, 1,698,374.54 and 686,886.29 is: 947,950.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,644.42 : 1,698,374.54 = 686,886.29 : x
  2. Step 2: Convert to fraction form
    1,230,644.42/1,698,374.54 = 686,886.29/x
  3. Step 3: Cross multiply
    1,230,644.42x = 1,698,374.54 × 686,886.29
  4. Step 4: Simplify right side
    1,230,644.42x = 1,166,590,180,036.40
  5. Step 5: Solve for x
    x = 1,166,590,180,036.40/1,230,644.42
  6. Step 6: Final answer
    x = 947,950.66

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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.