Home / 875,276.40-1,207,880.46-472,868.40

Finding the Fourth Proportional to 875,276.40, 1,207,880.46 and 472,868.40

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Solution

The fourth proportional to 875,276.40, 1,207,880.46 and 472,868.40 is: 652,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,276.40 : 1,207,880.46 = 472,868.40 : x
  2. Step 2: Convert to fraction form
    875,276.40/1,207,880.46 = 472,868.40/x
  3. Step 3: Cross multiply
    875,276.40x = 1,207,880.46 × 472,868.40
  4. Step 4: Simplify right side
    875,276.40x = 571,168,500,511.46
  5. Step 5: Solve for x
    x = 571,168,500,511.46/875,276.40
  6. Step 6: Final answer
    x = 652,557.87

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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.