Home / 917,312.40-1,375,968.60-243,392.40

Finding the Fourth Proportional to 917,312.40, 1,375,968.60 and 243,392.40

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Solution

The fourth proportional to 917,312.40, 1,375,968.60 and 243,392.40 is: 365,088.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,312.40 : 1,375,968.60 = 243,392.40 : x
  2. Step 2: Convert to fraction form
    917,312.40/1,375,968.60 = 243,392.40/x
  3. Step 3: Cross multiply
    917,312.40x = 1,375,968.60 × 243,392.40
  4. Step 4: Simplify right side
    917,312.40x = 334,900,299,878.64
  5. Step 5: Solve for x
    x = 334,900,299,878.64/917,312.40
  6. Step 6: Final answer
    x = 365,088.60

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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.