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Finding the Fourth Proportional to 970,345.80, 1,455,518.70 and 492,048.90

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Solution

The fourth proportional to 970,345.80, 1,455,518.70 and 492,048.90 is: 738,073.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,345.80 : 1,455,518.70 = 492,048.90 : x
  2. Step 2: Convert to fraction form
    970,345.80/1,455,518.70 = 492,048.90/x
  3. Step 3: Cross multiply
    970,345.80x = 1,455,518.70 × 492,048.90
  4. Step 4: Simplify right side
    970,345.80x = 716,186,375,264.43
  5. Step 5: Solve for x
    x = 716,186,375,264.43/970,345.80
  6. Step 6: Final answer
    x = 738,073.35

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Similar ratio
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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.