Home / 1,908,640-2,862,977.28-578,944

Finding the Fourth Proportional to 1,908,640, 2,862,977.28 and 578,944

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Solution

The fourth proportional to 1,908,640, 2,862,977.28 and 578,944 is: 868,421.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908,640 : 2,862,977.28 = 578,944 : x
  2. Step 2: Convert to fraction form
    1,908,640/2,862,977.28 = 578,944/x
  3. Step 3: Cross multiply
    1,908,640x = 2,862,977.28 × 578,944
  4. Step 4: Simplify right side
    1,908,640x = 1,657,503,518,392.32
  5. Step 5: Solve for x
    x = 1,657,503,518,392.32/1,908,640
  6. Step 6: Final answer
    x = 868,421.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.