Home / 1,312,802.16-1,812,271.80-768,862.32

Finding the Fourth Proportional to 1,312,802.16, 1,812,271.80 and 768,862.32

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Solution

The fourth proportional to 1,312,802.16, 1,812,271.80 and 768,862.32 is: 1,061,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,802.16 : 1,812,271.80 = 768,862.32 : x
  2. Step 2: Convert to fraction form
    1,312,802.16/1,812,271.80 = 768,862.32/x
  3. Step 3: Cross multiply
    1,312,802.16x = 1,812,271.80 × 768,862.32
  4. Step 4: Simplify right side
    1,312,802.16x = 1,393,387,500,618.58
  5. Step 5: Solve for x
    x = 1,393,387,500,618.58/1,312,802.16
  6. Step 6: Final answer
    x = 1,061,384.22

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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.