Home / 745,975.90-1,118,962.86-346,398.22

Finding the Fourth Proportional to 745,975.90, 1,118,962.86 and 346,398.22

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Solution

The fourth proportional to 745,975.90, 1,118,962.86 and 346,398.22 is: 519,596.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,975.90 : 1,118,962.86 = 346,398.22 : x
  2. Step 2: Convert to fraction form
    745,975.90/1,118,962.86 = 346,398.22/x
  3. Step 3: Cross multiply
    745,975.90x = 1,118,962.86 × 346,398.22
  4. Step 4: Simplify right side
    745,975.90x = 387,606,742,950.11
  5. Step 5: Solve for x
    x = 387,606,742,950.11/745,975.90
  6. Step 6: Final answer
    x = 519,596.87

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Double scale
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Similar ratio
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1.5x scale

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.