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Finding the Fourth Proportional to 615,036.64, 922,899.45 and 260,316.19

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Solution

The fourth proportional to 615,036.64, 922,899.45 and 260,316.19 is: 390,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,036.64 : 922,899.45 = 260,316.19 : x
  2. Step 2: Convert to fraction form
    615,036.64/922,899.45 = 260,316.19/x
  3. Step 3: Cross multiply
    615,036.64x = 922,899.45 × 260,316.19
  4. Step 4: Simplify right side
    615,036.64x = 240,245,668,577.10
  5. Step 5: Solve for x
    x = 240,245,668,577.10/615,036.64
  6. Step 6: Final answer
    x = 390,620.09

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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.