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Finding the Fourth Proportional to 870,668.34, 1,306,506.72 and 365,184.30

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Solution

The fourth proportional to 870,668.34, 1,306,506.72 and 365,184.30 is: 547,987.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,668.34 : 1,306,506.72 = 365,184.30 : x
  2. Step 2: Convert to fraction form
    870,668.34/1,306,506.72 = 365,184.30/x
  3. Step 3: Cross multiply
    870,668.34x = 1,306,506.72 × 365,184.30
  4. Step 4: Simplify right side
    870,668.34x = 477,115,741,988.50
  5. Step 5: Solve for x
    x = 477,115,741,988.50/870,668.34
  6. Step 6: Final answer
    x = 547,987.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.