Home / 753,345.84-1,039,624.88-409,188.48

Finding the Fourth Proportional to 753,345.84, 1,039,624.88 and 409,188.48

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Solution

The fourth proportional to 753,345.84, 1,039,624.88 and 409,188.48 is: 564,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,345.84 : 1,039,624.88 = 409,188.48 : x
  2. Step 2: Convert to fraction form
    753,345.84/1,039,624.88 = 409,188.48/x
  3. Step 3: Cross multiply
    753,345.84x = 1,039,624.88 × 409,188.48
  4. Step 4: Simplify right side
    753,345.84x = 425,402,528,827.46
  5. Step 5: Solve for x
    x = 425,402,528,827.46/753,345.84
  6. Step 6: Final answer
    x = 564,684.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.