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Finding the Fourth Proportional to 564,878.40, 850,395.12 and 487,740.48

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Solution

The fourth proportional to 564,878.40, 850,395.12 and 487,740.48 is: 734,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,878.40 : 850,395.12 = 487,740.48 : x
  2. Step 2: Convert to fraction form
    564,878.40/850,395.12 = 487,740.48/x
  3. Step 3: Cross multiply
    564,878.40x = 850,395.12 × 487,740.48
  4. Step 4: Simplify right side
    564,878.40x = 414,772,124,018.46
  5. Step 5: Solve for x
    x = 414,772,124,018.46/564,878.40
  6. Step 6: Final answer
    x = 734,267.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.