Home / 637,336.04-879,159.30-398,457.32

Finding the Fourth Proportional to 637,336.04, 879,159.30 and 398,457.32

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Solution

The fourth proportional to 637,336.04, 879,159.30 and 398,457.32 is: 549,643.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,336.04 : 879,159.30 = 398,457.32 : x
  2. Step 2: Convert to fraction form
    637,336.04/879,159.30 = 398,457.32/x
  3. Step 3: Cross multiply
    637,336.04x = 879,159.30 × 398,457.32
  4. Step 4: Simplify right side
    637,336.04x = 350,307,458,531.08
  5. Step 5: Solve for x
    x = 350,307,458,531.08/637,336.04
  6. Step 6: Final answer
    x = 549,643.26

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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.