Home / 2,912,392.09-4,018,210.47-1,688,453.40

Finding the Fourth Proportional to 2,912,392.09, 4,018,210.47 and 1,688,453.40

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Solution

The fourth proportional to 2,912,392.09, 4,018,210.47 and 1,688,453.40 is: 2,329,549.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,392.09 : 4,018,210.47 = 1,688,453.40 : x
  2. Step 2: Convert to fraction form
    2,912,392.09/4,018,210.47 = 1,688,453.40/x
  3. Step 3: Cross multiply
    2,912,392.09x = 4,018,210.47 × 1,688,453.40
  4. Step 4: Simplify right side
    2,912,392.09x = 6,784,561,145,055.39
  5. Step 5: Solve for x
    x = 6,784,561,145,055.39/2,912,392.09
  6. Step 6: Final answer
    x = 2,329,549.36

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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.