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Finding the Fourth Proportional to 658,461.40, 908,663.70 and 368,071.60

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Solution

The fourth proportional to 658,461.40, 908,663.70 and 368,071.60 is: 507,931.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,461.40 : 908,663.70 = 368,071.60 : x
  2. Step 2: Convert to fraction form
    658,461.40/908,663.70 = 368,071.60/x
  3. Step 3: Cross multiply
    658,461.40x = 908,663.70 × 368,071.60
  4. Step 4: Simplify right side
    658,461.40x = 334,453,301,920.92
  5. Step 5: Solve for x
    x = 334,453,301,920.92/658,461.40
  6. Step 6: Final answer
    x = 507,931.52

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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.