Finding the Fourth Proportional to 915,355.98, 1,263,265.84 and 507,585.68
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Solution
The fourth proportional to 915,355.98, 1,263,265.84 and 507,585.68 is: 700,509.60
Step by Step Solution
- Step 1: Write the proportion equation
915,355.98 : 1,263,265.84 = 507,585.68 : x - Step 2: Convert to fraction form
915,355.98/1,263,265.84 = 507,585.68/x - Step 3: Cross multiply
915,355.98x = 1,263,265.84 × 507,585.68 - Step 4: Simplify right side
915,355.98x = 641,215,650,417.17 - Step 5: Solve for x
x = 641,215,650,417.17/915,355.98 - Step 6: Final answer
x = 700,509.60
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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.