Home / 687,296.04-1,030,529.73-308,148.20

Finding the Fourth Proportional to 687,296.04, 1,030,529.73 and 308,148.20

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Solution

The fourth proportional to 687,296.04, 1,030,529.73 and 308,148.20 is: 462,036.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,296.04 : 1,030,529.73 = 308,148.20 : x
  2. Step 2: Convert to fraction form
    687,296.04/1,030,529.73 = 308,148.20/x
  3. Step 3: Cross multiply
    687,296.04x = 1,030,529.73 × 308,148.20
  4. Step 4: Simplify right side
    687,296.04x = 317,555,881,345.99
  5. Step 5: Solve for x
    x = 317,555,881,345.99/687,296.04
  6. Step 6: Final answer
    x = 462,036.54

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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.