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Finding the Fourth Proportional to 559,929.30, 772,421.58 and 355,647.04

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Solution

The fourth proportional to 559,929.30, 772,421.58 and 355,647.04 is: 490,614.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,929.30 : 772,421.58 = 355,647.04 : x
  2. Step 2: Convert to fraction form
    559,929.30/772,421.58 = 355,647.04/x
  3. Step 3: Cross multiply
    559,929.30x = 772,421.58 × 355,647.04
  4. Step 4: Simplify right side
    559,929.30x = 274,709,448,559.12
  5. Step 5: Solve for x
    x = 274,709,448,559.12/559,929.30
  6. Step 6: Final answer
    x = 490,614.53

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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.