Home / 817,088.80-1,225,830.08-256,123.30

Finding the Fourth Proportional to 817,088.80, 1,225,830.08 and 256,123.30

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Solution

The fourth proportional to 817,088.80, 1,225,830.08 and 256,123.30 is: 384,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,088.80 : 1,225,830.08 = 256,123.30 : x
  2. Step 2: Convert to fraction form
    817,088.80/1,225,830.08 = 256,123.30/x
  3. Step 3: Cross multiply
    817,088.80x = 1,225,830.08 × 256,123.30
  4. Step 4: Simplify right side
    817,088.80x = 313,963,645,328.86
  5. Step 5: Solve for x
    x = 313,963,645,328.86/817,088.80
  6. Step 6: Final answer
    x = 384,246.66

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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.