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Finding the Fourth Proportional to 553,951.10, 830,926.65 and 342,904.70

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Solution

The fourth proportional to 553,951.10, 830,926.65 and 342,904.70 is: 514,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,951.10 : 830,926.65 = 342,904.70 : x
  2. Step 2: Convert to fraction form
    553,951.10/830,926.65 = 342,904.70/x
  3. Step 3: Cross multiply
    553,951.10x = 830,926.65 × 342,904.70
  4. Step 4: Simplify right side
    553,951.10x = 284,928,653,640.26
  5. Step 5: Solve for x
    x = 284,928,653,640.26/553,951.10
  6. Step 6: Final answer
    x = 514,357.05

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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.