Home / 808,355.10-1,211,220.45-508,298.70

Finding the Fourth Proportional to 808,355.10, 1,211,220.45 and 508,298.70

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Solution

The fourth proportional to 808,355.10, 1,211,220.45 and 508,298.70 is: 761,622.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,355.10 : 1,211,220.45 = 508,298.70 : x
  2. Step 2: Convert to fraction form
    808,355.10/1,211,220.45 = 508,298.70/x
  3. Step 3: Cross multiply
    808,355.10x = 1,211,220.45 × 508,298.70
  4. Step 4: Simplify right side
    808,355.10x = 615,661,780,148.42
  5. Step 5: Solve for x
    x = 615,661,780,148.42/808,355.10
  6. Step 6: Final answer
    x = 761,622.93

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1.5x scale

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.