Home / 1,528,328.40-2,109,115.02-840,063.90

Finding the Fourth Proportional to 1,528,328.40, 2,109,115.02 and 840,063.90

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Solution

The fourth proportional to 1,528,328.40, 2,109,115.02 and 840,063.90 is: 1,159,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,328.40 : 2,109,115.02 = 840,063.90 : x
  2. Step 2: Convert to fraction form
    1,528,328.40/2,109,115.02 = 840,063.90/x
  3. Step 3: Cross multiply
    1,528,328.40x = 2,109,115.02 × 840,063.90
  4. Step 4: Simplify right side
    1,528,328.40x = 1,771,791,389,249.78
  5. Step 5: Solve for x
    x = 1,771,791,389,249.78/1,528,328.40
  6. Step 6: Final answer
    x = 1,159,300.18

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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.