Home / 702,719.30-1,054,498.75-645,547.35

Finding the Fourth Proportional to 702,719.30, 1,054,498.75 and 645,547.35

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Solution

The fourth proportional to 702,719.30, 1,054,498.75 and 645,547.35 is: 968,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,719.30 : 1,054,498.75 = 645,547.35 : x
  2. Step 2: Convert to fraction form
    702,719.30/1,054,498.75 = 645,547.35/x
  3. Step 3: Cross multiply
    702,719.30x = 1,054,498.75 × 645,547.35
  4. Step 4: Simplify right side
    702,719.30x = 680,728,879,612.52
  5. Step 5: Solve for x
    x = 680,728,879,612.52/702,719.30
  6. Step 6: Final answer
    x = 968,706.68

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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.