Home / 1,565,115.40-2,348,547.90-666,404.20

Finding the Fourth Proportional to 1,565,115.40, 2,348,547.90 and 666,404.20

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Solution

The fourth proportional to 1,565,115.40, 2,348,547.90 and 666,404.20 is: 999,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,115.40 : 2,348,547.90 = 666,404.20 : x
  2. Step 2: Convert to fraction form
    1,565,115.40/2,348,547.90 = 666,404.20/x
  3. Step 3: Cross multiply
    1,565,115.40x = 2,348,547.90 × 666,404.20
  4. Step 4: Simplify right side
    1,565,115.40x = 1,565,082,184,461.18
  5. Step 5: Solve for x
    x = 1,565,082,184,461.18/1,565,115.40
  6. Step 6: Final answer
    x = 999,978.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.