Home / 1,020,304.76-1,407,959.16-561,402.50

Finding the Fourth Proportional to 1,020,304.76, 1,407,959.16 and 561,402.50

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Solution

The fourth proportional to 1,020,304.76, 1,407,959.16 and 561,402.50 is: 774,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,304.76 : 1,407,959.16 = 561,402.50 : x
  2. Step 2: Convert to fraction form
    1,020,304.76/1,407,959.16 = 561,402.50/x
  3. Step 3: Cross multiply
    1,020,304.76x = 1,407,959.16 × 561,402.50
  4. Step 4: Simplify right side
    1,020,304.76x = 790,431,792,321.90
  5. Step 5: Solve for x
    x = 790,431,792,321.90/1,020,304.76
  6. Step 6: Final answer
    x = 774,701.66

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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.