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Finding the Fourth Proportional to 615,479.04, 923,208.98 and 315,786.67

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Solution

The fourth proportional to 615,479.04, 923,208.98 and 315,786.67 is: 473,675.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,479.04 : 923,208.98 = 315,786.67 : x
  2. Step 2: Convert to fraction form
    615,479.04/923,208.98 = 315,786.67/x
  3. Step 3: Cross multiply
    615,479.04x = 923,208.98 × 315,786.67
  4. Step 4: Simplify right side
    615,479.04x = 291,537,085,621.34
  5. Step 5: Solve for x
    x = 291,537,085,621.34/615,479.04
  6. Step 6: Final answer
    x = 473,675.08

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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.