Home / 1,500,891.84-2,069,831.32-1,389,427.76

Finding the Fourth Proportional to 1,500,891.84, 2,069,831.32 and 1,389,427.76

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Solution

The fourth proportional to 1,500,891.84, 2,069,831.32 and 1,389,427.76 is: 1,916,114.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,891.84 : 2,069,831.32 = 1,389,427.76 : x
  2. Step 2: Convert to fraction form
    1,500,891.84/2,069,831.32 = 1,389,427.76/x
  3. Step 3: Cross multiply
    1,500,891.84x = 2,069,831.32 × 1,389,427.76
  4. Step 4: Simplify right side
    1,500,891.84x = 2,875,881,094,525.44
  5. Step 5: Solve for x
    x = 2,875,881,094,525.44/1,500,891.84
  6. Step 6: Final answer
    x = 1,916,114.82

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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.