Home / 630,973.60-870,739.02-344,493.70

Finding the Fourth Proportional to 630,973.60, 870,739.02 and 344,493.70

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Solution

The fourth proportional to 630,973.60, 870,739.02 and 344,493.70 is: 475,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,973.60 : 870,739.02 = 344,493.70 : x
  2. Step 2: Convert to fraction form
    630,973.60/870,739.02 = 344,493.70/x
  3. Step 3: Cross multiply
    630,973.60x = 870,739.02 × 344,493.70
  4. Step 4: Simplify right side
    630,973.60x = 299,964,106,734.17
  5. Step 5: Solve for x
    x = 299,964,106,734.17/630,973.60
  6. Step 6: Final answer
    x = 475,398.82

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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.