Home / 855,633.17-1,180,787.69-468,442.05

Finding the Fourth Proportional to 855,633.17, 1,180,787.69 and 468,442.05

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Solution

The fourth proportional to 855,633.17, 1,180,787.69 and 468,442.05 is: 646,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,633.17 : 1,180,787.69 = 468,442.05 : x
  2. Step 2: Convert to fraction form
    855,633.17/1,180,787.69 = 468,442.05/x
  3. Step 3: Cross multiply
    855,633.17x = 1,180,787.69 × 468,442.05
  4. Step 4: Simplify right side
    855,633.17x = 553,130,607,289.47
  5. Step 5: Solve for x
    x = 553,130,607,289.47/855,633.17
  6. Step 6: Final answer
    x = 646,457.65

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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.