Home / 970,288.08-1,338,881.32-556,803.60

Finding the Fourth Proportional to 970,288.08, 1,338,881.32 and 556,803.60

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Solution

The fourth proportional to 970,288.08, 1,338,881.32 and 556,803.60 is: 768,322.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,288.08 : 1,338,881.32 = 556,803.60 : x
  2. Step 2: Convert to fraction form
    970,288.08/1,338,881.32 = 556,803.60/x
  3. Step 3: Cross multiply
    970,288.08x = 1,338,881.32 × 556,803.60
  4. Step 4: Simplify right side
    970,288.08x = 745,493,938,948.75
  5. Step 5: Solve for x
    x = 745,493,938,948.75/970,288.08
  6. Step 6: Final answer
    x = 768,322.27

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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.