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Finding the Fourth Proportional to 900,068.06, 1,242,050.28 and 512,974.10

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Solution

The fourth proportional to 900,068.06, 1,242,050.28 and 512,974.10 is: 707,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,068.06 : 1,242,050.28 = 512,974.10 : x
  2. Step 2: Convert to fraction form
    900,068.06/1,242,050.28 = 512,974.10/x
  3. Step 3: Cross multiply
    900,068.06x = 1,242,050.28 × 512,974.10
  4. Step 4: Simplify right side
    900,068.06x = 637,139,624,537.75
  5. Step 5: Solve for x
    x = 637,139,624,537.75/900,068.06
  6. Step 6: Final answer
    x = 707,879.38

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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.