Home / 1,535,398.71-2,118,165.06-890,445.12

Finding the Fourth Proportional to 1,535,398.71, 2,118,165.06 and 890,445.12

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Solution

The fourth proportional to 1,535,398.71, 2,118,165.06 and 890,445.12 is: 1,228,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,535,398.71 : 2,118,165.06 = 890,445.12 : x
  2. Step 2: Convert to fraction form
    1,535,398.71/2,118,165.06 = 890,445.12/x
  3. Step 3: Cross multiply
    1,535,398.71x = 2,118,165.06 × 890,445.12
  4. Step 4: Simplify right side
    1,535,398.71x = 1,886,109,741,031.51
  5. Step 5: Solve for x
    x = 1,886,109,741,031.51/1,535,398.71
  6. Step 6: Final answer
    x = 1,228,416.91

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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.