Home / 1,577,840.40-2,368,860.36-830,411.28

Finding the Fourth Proportional to 1,577,840.40, 2,368,860.36 and 830,411.28

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Solution

The fourth proportional to 1,577,840.40, 2,368,860.36 and 830,411.28 is: 1,246,722.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577,840.40 : 2,368,860.36 = 830,411.28 : x
  2. Step 2: Convert to fraction form
    1,577,840.40/2,368,860.36 = 830,411.28/x
  3. Step 3: Cross multiply
    1,577,840.40x = 2,368,860.36 × 830,411.28
  4. Step 4: Simplify right side
    1,577,840.40x = 1,967,128,363,688.86
  5. Step 5: Solve for x
    x = 1,967,128,363,688.86/1,577,840.40
  6. Step 6: Final answer
    x = 1,246,722.02

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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.