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Finding the Fourth Proportional to 615,920.40, 924,005.40 and 349,808.40

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Solution

The fourth proportional to 615,920.40, 924,005.40 and 349,808.40 is: 524,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,920.40 : 924,005.40 = 349,808.40 : x
  2. Step 2: Convert to fraction form
    615,920.40/924,005.40 = 349,808.40/x
  3. Step 3: Cross multiply
    615,920.40x = 924,005.40 × 349,808.40
  4. Step 4: Simplify right side
    615,920.40x = 323,224,850,565.36
  5. Step 5: Solve for x
    x = 323,224,850,565.36/615,920.40
  6. Step 6: Final answer
    x = 524,783.48

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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.