Finding the Fourth Proportional to 572,318.60, 789,637.68 and 368,487.50
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Solution
The fourth proportional to 572,318.60, 789,637.68 and 368,487.50 is: 508,408.45
Step by Step Solution
- Step 1: Write the proportion equation
572,318.60 : 789,637.68 = 368,487.50 : x - Step 2: Convert to fraction form
572,318.60/789,637.68 = 368,487.50/x - Step 3: Cross multiply
572,318.60x = 789,637.68 × 368,487.50 - Step 4: Simplify right side
572,318.60x = 290,971,610,660.81 - Step 5: Solve for x
x = 290,971,610,660.81/572,318.60 - Step 6: Final answer
x = 508,408.45
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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.