Finding the Fourth Proportional to 875,239.07, 1,312,899.60 and 425,423.75
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Solution
The fourth proportional to 875,239.07, 1,312,899.60 and 425,423.75 is: 638,155.55
Step by Step Solution
- Step 1: Write the proportion equation
875,239.07 : 1,312,899.60 = 425,423.75 : x - Step 2: Convert to fraction form
875,239.07/1,312,899.60 = 425,423.75/x - Step 3: Cross multiply
875,239.07x = 1,312,899.60 × 425,423.75 - Step 4: Simplify right side
875,239.07x = 558,538,664,641.00 - Step 5: Solve for x
x = 558,538,664,641.00/875,239.07 - Step 6: Final answer
x = 638,155.55
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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.