Finding the Fourth Proportional to 832,430.55, 1,148,762.36 and 450,465.53
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Solution
The fourth proportional to 832,430.55, 1,148,762.36 and 450,465.53 is: 621,646.87
Step by Step Solution
- Step 1: Write the proportion equation
832,430.55 : 1,148,762.36 = 450,465.53 : x - Step 2: Convert to fraction form
832,430.55/1,148,762.36 = 450,465.53/x - Step 3: Cross multiply
832,430.55x = 1,148,762.36 × 450,465.53 - Step 4: Simplify right side
832,430.55x = 517,477,845,341.45 - Step 5: Solve for x
x = 517,477,845,341.45/832,430.55 - Step 6: Final answer
x = 621,646.87
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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.