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Finding the Fourth Proportional to 615,069.20, 922,603.80 and 608,848.40

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Solution

The fourth proportional to 615,069.20, 922,603.80 and 608,848.40 is: 913,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,069.20 : 922,603.80 = 608,848.40 : x
  2. Step 2: Convert to fraction form
    615,069.20/922,603.80 = 608,848.40/x
  3. Step 3: Cross multiply
    615,069.20x = 922,603.80 × 608,848.40
  4. Step 4: Simplify right side
    615,069.20x = 561,725,847,463.92
  5. Step 5: Solve for x
    x = 561,725,847,463.92/615,069.20
  6. Step 6: Final answer
    x = 913,272.60

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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.