Home / 1,145,547.15-1,580,803.92-686,914.80

Finding the Fourth Proportional to 1,145,547.15, 1,580,803.92 and 686,914.80

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Solution

The fourth proportional to 1,145,547.15, 1,580,803.92 and 686,914.80 is: 947,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,547.15 : 1,580,803.92 = 686,914.80 : x
  2. Step 2: Convert to fraction form
    1,145,547.15/1,580,803.92 = 686,914.80/x
  3. Step 3: Cross multiply
    1,145,547.15x = 1,580,803.92 × 686,914.80
  4. Step 4: Simplify right side
    1,145,547.15x = 1,085,877,604,549.95
  5. Step 5: Solve for x
    x = 1,085,877,604,549.95/1,145,547.15
  6. Step 6: Final answer
    x = 947,911.75

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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.