Home / 920,528.08-1,270,024.32-538,284.28

Finding the Fourth Proportional to 920,528.08, 1,270,024.32 and 538,284.28

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Solution

The fourth proportional to 920,528.08, 1,270,024.32 and 538,284.28 is: 742,654.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,528.08 : 1,270,024.32 = 538,284.28 : x
  2. Step 2: Convert to fraction form
    920,528.08/1,270,024.32 = 538,284.28/x
  3. Step 3: Cross multiply
    920,528.08x = 1,270,024.32 × 538,284.28
  4. Step 4: Simplify right side
    920,528.08x = 683,634,126,673.69
  5. Step 5: Solve for x
    x = 683,634,126,673.69/920,528.08
  6. Step 6: Final answer
    x = 742,654.29

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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.