Finding the Fourth Proportional to 646,875.80, 970,313.70 and 553,563.80
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Solution
The fourth proportional to 646,875.80, 970,313.70 and 553,563.80 is: 830,345.70
Step by Step Solution
- Step 1: Write the proportion equation
646,875.80 : 970,313.70 = 553,563.80 : x - Step 2: Convert to fraction form
646,875.80/970,313.70 = 553,563.80/x - Step 3: Cross multiply
646,875.80x = 970,313.70 × 553,563.80 - Step 4: Simplify right side
646,875.80x = 537,130,538,964.06 - Step 5: Solve for x
x = 537,130,538,964.06/646,875.80 - Step 6: Final answer
x = 830,345.70
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1.5x scale
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.