Home / 970,720.20-1,455,497.10-498,328.20

Finding the Fourth Proportional to 970,720.20, 1,455,497.10 and 498,328.20

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Solution

The fourth proportional to 970,720.20, 1,455,497.10 and 498,328.20 is: 747,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,720.20 : 1,455,497.10 = 498,328.20 : x
  2. Step 2: Convert to fraction form
    970,720.20/1,455,497.10 = 498,328.20/x
  3. Step 3: Cross multiply
    970,720.20x = 1,455,497.10 × 498,328.20
  4. Step 4: Simplify right side
    970,720.20x = 725,315,249,948.22
  5. Step 5: Solve for x
    x = 725,315,249,948.22/970,720.20
  6. Step 6: Final answer
    x = 747,192.91

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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.