Home / 787,048.04-1,085,990.70-442,836.20

Finding the Fourth Proportional to 787,048.04, 1,085,990.70 and 442,836.20

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Solution

The fourth proportional to 787,048.04, 1,085,990.70 and 442,836.20 is: 611,037.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,048.04 : 1,085,990.70 = 442,836.20 : x
  2. Step 2: Convert to fraction form
    787,048.04/1,085,990.70 = 442,836.20/x
  3. Step 3: Cross multiply
    787,048.04x = 1,085,990.70 × 442,836.20
  4. Step 4: Simplify right side
    787,048.04x = 480,915,994,823.34
  5. Step 5: Solve for x
    x = 480,915,994,823.34/787,048.04
  6. Step 6: Final answer
    x = 611,037.66

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Double scale
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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.