Home / 978,030.24-1,349,746.68-548,338.20

Finding the Fourth Proportional to 978,030.24, 1,349,746.68 and 548,338.20

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Solution

The fourth proportional to 978,030.24, 1,349,746.68 and 548,338.20 is: 756,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,030.24 : 1,349,746.68 = 548,338.20 : x
  2. Step 2: Convert to fraction form
    978,030.24/1,349,746.68 = 548,338.20/x
  3. Step 3: Cross multiply
    978,030.24x = 1,349,746.68 × 548,338.20
  4. Step 4: Simplify right side
    978,030.24x = 740,117,664,967.18
  5. Step 5: Solve for x
    x = 740,117,664,967.18/978,030.24
  6. Step 6: Final answer
    x = 756,743.13

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1.5x scale

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.