Home / 1,387,830.74-1,915,734.93-904,513.46

Finding the Fourth Proportional to 1,387,830.74, 1,915,734.93 and 904,513.46

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Solution

The fourth proportional to 1,387,830.74, 1,915,734.93 and 904,513.46 is: 1,248,573.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,830.74 : 1,915,734.93 = 904,513.46 : x
  2. Step 2: Convert to fraction form
    1,387,830.74/1,915,734.93 = 904,513.46/x
  3. Step 3: Cross multiply
    1,387,830.74x = 1,915,734.93 × 904,513.46
  4. Step 4: Simplify right side
    1,387,830.74x = 1,732,808,029,977.16
  5. Step 5: Solve for x
    x = 1,732,808,029,977.16/1,387,830.74
  6. Step 6: Final answer
    x = 1,248,573.03

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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.