Home / 1,430,318.52-1,973,840.85-785,780.46

Finding the Fourth Proportional to 1,430,318.52, 1,973,840.85 and 785,780.46

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Solution

The fourth proportional to 1,430,318.52, 1,973,840.85 and 785,780.46 is: 1,084,377.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,318.52 : 1,973,840.85 = 785,780.46 : x
  2. Step 2: Convert to fraction form
    1,430,318.52/1,973,840.85 = 785,780.46/x
  3. Step 3: Cross multiply
    1,430,318.52x = 1,973,840.85 × 785,780.46
  4. Step 4: Simplify right side
    1,430,318.52x = 1,551,005,571,079.79
  5. Step 5: Solve for x
    x = 1,551,005,571,079.79/1,430,318.52
  6. Step 6: Final answer
    x = 1,084,377.74

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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.