Home / 918,210.40-1,266,767.52-530,954.56

Finding the Fourth Proportional to 918,210.40, 1,266,767.52 and 530,954.56

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Solution

The fourth proportional to 918,210.40, 1,266,767.52 and 530,954.56 is: 732,507.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,210.40 : 1,266,767.52 = 530,954.56 : x
  2. Step 2: Convert to fraction form
    918,210.40/1,266,767.52 = 530,954.56/x
  3. Step 3: Cross multiply
    918,210.40x = 1,266,767.52 × 530,954.56
  4. Step 4: Simplify right side
    918,210.40x = 672,595,991,203.89
  5. Step 5: Solve for x
    x = 672,595,991,203.89/918,210.40
  6. Step 6: Final answer
    x = 732,507.49

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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.