Home / 1,121,016.78-1,547,000.91-630,946.80

Finding the Fourth Proportional to 1,121,016.78, 1,547,000.91 and 630,946.80

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Solution

The fourth proportional to 1,121,016.78, 1,547,000.91 and 630,946.80 is: 870,705.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,016.78 : 1,547,000.91 = 630,946.80 : x
  2. Step 2: Convert to fraction form
    1,121,016.78/1,547,000.91 = 630,946.80/x
  3. Step 3: Cross multiply
    1,121,016.78x = 1,547,000.91 × 630,946.80
  4. Step 4: Simplify right side
    1,121,016.78x = 976,075,273,761.59
  5. Step 5: Solve for x
    x = 976,075,273,761.59/1,121,016.78
  6. Step 6: Final answer
    x = 870,705.32

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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.