Home / 630,919.08-870,681.48-344,451.24

Finding the Fourth Proportional to 630,919.08, 870,681.48 and 344,451.24

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Solution

The fourth proportional to 630,919.08, 870,681.48 and 344,451.24 is: 475,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,919.08 : 870,681.48 = 344,451.24 : x
  2. Step 2: Convert to fraction form
    630,919.08/870,681.48 = 344,451.24/x
  3. Step 3: Cross multiply
    630,919.08x = 870,681.48 × 344,451.24
  4. Step 4: Simplify right side
    630,919.08x = 299,907,315,431.04
  5. Step 5: Solve for x
    x = 299,907,315,431.04/630,919.08
  6. Step 6: Final answer
    x = 475,349.89

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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.