Home / 630,731.03-870,508.49-401,048.89

Finding the Fourth Proportional to 630,731.03, 870,508.49 and 401,048.89

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Solution

The fourth proportional to 630,731.03, 870,508.49 and 401,048.89 is: 553,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,731.03 : 870,508.49 = 401,048.89 : x
  2. Step 2: Convert to fraction form
    630,731.03/870,508.49 = 401,048.89/x
  3. Step 3: Cross multiply
    630,731.03x = 870,508.49 × 401,048.89
  4. Step 4: Simplify right side
    630,731.03x = 349,116,463,650.08
  5. Step 5: Solve for x
    x = 349,116,463,650.08/630,731.03
  6. Step 6: Final answer
    x = 553,510.84

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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.