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Finding the Fourth Proportional to 409,326.93, 564,888.60 and 228,038.76

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Solution

The fourth proportional to 409,326.93, 564,888.60 and 228,038.76 is: 314,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,326.93 : 564,888.60 = 228,038.76 : x
  2. Step 2: Convert to fraction form
    409,326.93/564,888.60 = 228,038.76/x
  3. Step 3: Cross multiply
    409,326.93x = 564,888.60 × 228,038.76
  4. Step 4: Simplify right side
    409,326.93x = 128,816,495,882.14
  5. Step 5: Solve for x
    x = 128,816,495,882.14/409,326.93
  6. Step 6: Final answer
    x = 314,703.20

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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.