Home / 870,048.98-1,200,398.52-507,215.96

Finding the Fourth Proportional to 870,048.98, 1,200,398.52 and 507,215.96

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Solution

The fourth proportional to 870,048.98, 1,200,398.52 and 507,215.96 is: 699,801.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,048.98 : 1,200,398.52 = 507,215.96 : x
  2. Step 2: Convert to fraction form
    870,048.98/1,200,398.52 = 507,215.96/x
  3. Step 3: Cross multiply
    870,048.98x = 1,200,398.52 × 507,215.96
  4. Step 4: Simplify right side
    870,048.98x = 608,861,287,704.38
  5. Step 5: Solve for x
    x = 608,861,287,704.38/870,048.98
  6. Step 6: Final answer
    x = 699,801.16

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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.