Home / 900,118.07-1,242,123.38-513,017.27

Finding the Fourth Proportional to 900,118.07, 1,242,123.38 and 513,017.27

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Solution

The fourth proportional to 900,118.07, 1,242,123.38 and 513,017.27 is: 707,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,118.07 : 1,242,123.38 = 513,017.27 : x
  2. Step 2: Convert to fraction form
    900,118.07/1,242,123.38 = 513,017.27/x
  3. Step 3: Cross multiply
    900,118.07x = 1,242,123.38 × 513,017.27
  4. Step 4: Simplify right side
    900,118.07x = 637,230,740,482.70
  5. Step 5: Solve for x
    x = 637,230,740,482.70/900,118.07
  6. Step 6: Final answer
    x = 707,941.29

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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.