Home / 630,557.20-870,152.52-344,080.72

Finding the Fourth Proportional to 630,557.20, 870,152.52 and 344,080.72

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Solution

The fourth proportional to 630,557.20, 870,152.52 and 344,080.72 is: 474,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,557.20 : 870,152.52 = 344,080.72 : x
  2. Step 2: Convert to fraction form
    630,557.20/870,152.52 = 344,080.72/x
  3. Step 3: Cross multiply
    630,557.20x = 870,152.52 × 344,080.72
  4. Step 4: Simplify right side
    630,557.20x = 299,402,705,591.41
  5. Step 5: Solve for x
    x = 299,402,705,591.41/630,557.20
  6. Step 6: Final answer
    x = 474,822.44

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1.5x scale

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.