Home / 1,013,989.47-1,399,305.49-561,280.47

Finding the Fourth Proportional to 1,013,989.47, 1,399,305.49 and 561,280.47

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Solution

The fourth proportional to 1,013,989.47, 1,399,305.49 and 561,280.47 is: 774,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,989.47 : 1,399,305.49 = 561,280.47 : x
  2. Step 2: Convert to fraction form
    1,013,989.47/1,399,305.49 = 561,280.47/x
  3. Step 3: Cross multiply
    1,013,989.47x = 1,399,305.49 × 561,280.47
  4. Step 4: Simplify right side
    1,013,989.47x = 785,402,840,294.38
  5. Step 5: Solve for x
    x = 785,402,840,294.38/1,013,989.47
  6. Step 6: Final answer
    x = 774,567.06

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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.