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Finding the Fourth Proportional to 720,021.60, 1,077,699.60 and 510,069.60

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Solution

The fourth proportional to 720,021.60, 1,077,699.60 and 510,069.60 is: 763,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,021.60 : 1,077,699.60 = 510,069.60 : x
  2. Step 2: Convert to fraction form
    720,021.60/1,077,699.60 = 510,069.60/x
  3. Step 3: Cross multiply
    720,021.60x = 1,077,699.60 × 510,069.60
  4. Step 4: Simplify right side
    720,021.60x = 549,701,803,892.16
  5. Step 5: Solve for x
    x = 549,701,803,892.16/720,021.60
  6. Step 6: Final answer
    x = 763,451.82

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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.