Home / 918,117.98-1,266,902.21-530,874.80

Finding the Fourth Proportional to 918,117.98, 1,266,902.21 and 530,874.80

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Solution

The fourth proportional to 918,117.98, 1,266,902.21 and 530,874.80 is: 732,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,117.98 : 1,266,902.21 = 530,874.80 : x
  2. Step 2: Convert to fraction form
    918,117.98/1,266,902.21 = 530,874.80/x
  3. Step 3: Cross multiply
    918,117.98x = 1,266,902.21 × 530,874.80
  4. Step 4: Simplify right side
    918,117.98x = 672,566,461,237.02
  5. Step 5: Solve for x
    x = 672,566,461,237.02/918,117.98
  6. Step 6: Final answer
    x = 732,549.05

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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.