Home / 630,967.10-870,730.05-344,487.18

Finding the Fourth Proportional to 630,967.10, 870,730.05 and 344,487.18

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Solution

The fourth proportional to 630,967.10, 870,730.05 and 344,487.18 is: 475,389.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,967.10 : 870,730.05 = 344,487.18 : x
  2. Step 2: Convert to fraction form
    630,967.10/870,730.05 = 344,487.18/x
  3. Step 3: Cross multiply
    630,967.10x = 870,730.05 × 344,487.18
  4. Step 4: Simplify right side
    630,967.10x = 299,955,339,465.76
  5. Step 5: Solve for x
    x = 299,955,339,465.76/630,967.10
  6. Step 6: Final answer
    x = 475,389.83

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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.