Finding the Fourth Proportional to 458,495.12, 687,740.28 and 249,461.84
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Solution
The fourth proportional to 458,495.12, 687,740.28 and 249,461.84 is: 374,191.45
Step by Step Solution
- Step 1: Write the proportion equation
458,495.12 : 687,740.28 = 249,461.84 : x - Step 2: Convert to fraction form
458,495.12/687,740.28 = 249,461.84/x - Step 3: Cross multiply
458,495.12x = 687,740.28 × 249,461.84 - Step 4: Simplify right side
458,495.12x = 171,564,955,690.92 - Step 5: Solve for x
x = 171,564,955,690.92/458,495.12 - Step 6: Final answer
x = 374,191.45
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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.