Home / 754,870.80-1,042,048.48-539,637.60

Finding the Fourth Proportional to 754,870.80, 1,042,048.48 and 539,637.60

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Solution

The fourth proportional to 754,870.80, 1,042,048.48 and 539,637.60 is: 744,933.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,870.80 : 1,042,048.48 = 539,637.60 : x
  2. Step 2: Convert to fraction form
    754,870.80/1,042,048.48 = 539,637.60/x
  3. Step 3: Cross multiply
    754,870.80x = 1,042,048.48 × 539,637.60
  4. Step 4: Simplify right side
    754,870.80x = 562,328,540,830.85
  5. Step 5: Solve for x
    x = 562,328,540,830.85/754,870.80
  6. Step 6: Final answer
    x = 744,933.49

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Double scale
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1.5x scale

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.